diff --git a/components/compositing/Cargo.toml b/components/compositing/Cargo.toml
index 0c027195b25..b9fea313f32 100644
--- a/components/compositing/Cargo.toml
+++ b/components/compositing/Cargo.toml
@@ -48,6 +48,7 @@ git = "https://github.com/servo/rust-layers"
 
 [dependencies.png]
 git = "https://github.com/servo/rust-png"
+features = [ "serde-serialization" ]
 
 [dependencies.clipboard]
 git = "https://github.com/aweinstock314/rust-clipboard"
@@ -58,7 +59,7 @@ git = "https://github.com/pcwalton/ipc-channel"
 [dependencies]
 log = "*"
 num = "0.1.24"
-url = "0.2.35"
+url = "0.2.36"
 time = "0.1.17"
 libc = "*"
 gleam = "0.1"
diff --git a/components/compositing/compositor_task.rs b/components/compositing/compositor_task.rs
index d8ada04bbdf..b9738685f6b 100644
--- a/components/compositing/compositor_task.rs
+++ b/components/compositing/compositor_task.rs
@@ -13,7 +13,7 @@ use windowing::{WindowEvent, WindowMethods};
 
 use euclid::point::Point2D;
 use euclid::rect::Rect;
-use ipc_channel::ipc::IpcReceiver;
+use ipc_channel::ipc::{IpcReceiver, IpcSender};
 use layers::platform::surface::NativeDisplay;
 use layers::layers::{BufferRequest, LayerBuffer, LayerBufferSet};
 use msg::compositor_msg::{Epoch, LayerId, LayerProperties, FrameTreeId};
@@ -183,7 +183,7 @@ pub enum Msg {
     /// Changes the cursor.
     SetCursor(Cursor),
     /// Composite to a PNG file and return the Image over a passed channel.
-    CreatePng(Sender<Option<png::Image>>),
+    CreatePng(IpcSender<Option<png::Image>>),
     /// Informs the compositor that the paint task for the given pipeline has exited.
     PaintTaskExited(PipelineId),
     /// Alerts the compositor that the viewport has been constrained in some manner
diff --git a/components/compositing/constellation.rs b/components/compositing/constellation.rs
index b7498ccf843..7dd06342790 100644
--- a/components/compositing/constellation.rs
+++ b/components/compositing/constellation.rs
@@ -19,7 +19,7 @@ use euclid::rect::{Rect, TypedRect};
 use euclid::size::Size2D;
 use euclid::scale_factor::ScaleFactor;
 use gfx::font_cache_task::FontCacheTask;
-use ipc_channel::ipc;
+use ipc_channel::ipc::{self, IpcSender};
 use layout_traits::{LayoutControlChan, LayoutTaskFactory};
 use libc;
 use msg::compositor_msg::{Epoch, LayerId};
@@ -44,7 +44,7 @@ use std::collections::HashMap;
 use std::io::{self, Write};
 use std::marker::PhantomData;
 use std::mem::replace;
-use std::sync::mpsc::{Sender, Receiver, channel};
+use std::sync::mpsc::{Receiver, channel};
 use style::viewport::ViewportConstraints;
 use url::Url;
 use util::cursor::Cursor;
@@ -191,7 +191,7 @@ pub struct SendableFrameTree {
 }
 
 struct WebDriverData {
-    load_channel: Option<(PipelineId, Sender<webdriver_msg::LoadStatus>)>
+    load_channel: Option<(PipelineId, IpcSender<webdriver_msg::LoadStatus>)>
 }
 
 impl WebDriverData {
@@ -849,7 +849,7 @@ impl<LTF: LayoutTaskFactory, STF: ScriptTaskFactory> Constellation<LTF, STF> {
     }
 
     fn handle_get_pipeline(&mut self, frame_id: Option<FrameId>,
-                           resp_chan: Sender<Option<PipelineId>>) {
+                           resp_chan: IpcSender<Option<PipelineId>>) {
         let current_pipeline_id = frame_id.or(self.root_frame_id).map(|frame_id| {
             let frame = self.frames.get(&frame_id).unwrap();
             frame.current
@@ -863,7 +863,7 @@ impl<LTF: LayoutTaskFactory, STF: ScriptTaskFactory> Constellation<LTF, STF> {
     fn handle_get_frame(&mut self,
                         containing_pipeline_id: PipelineId,
                         subpage_id: SubpageId,
-                        resp_chan: Sender<Option<FrameId>>) {
+                        resp_chan: IpcSender<Option<FrameId>>) {
         let frame_id = self.subpage_map.get(&(containing_pipeline_id, subpage_id)).and_then(
             |x| self.pipeline_to_frame_map.get(&x)).map(|x| *x);
         resp_chan.send(frame_id).unwrap();
diff --git a/components/devtools/Cargo.toml b/components/devtools/Cargo.toml
index 63cba3ccfe3..ac16535dcd8 100644
--- a/components/devtools/Cargo.toml
+++ b/components/devtools/Cargo.toml
@@ -7,6 +7,10 @@ authors = ["The Servo Project Developers"]
 name = "devtools"
 path = "lib.rs"
 
+[dependencies.hyper]
+version = "0.6"
+features = [ "serde-serialization" ]
+
 [dependencies.devtools_traits]
 path = "../devtools_traits"
 
@@ -20,5 +24,4 @@ path = "../util"
 log = "*"
 time = "*"
 rustc-serialize = "0.3"
-url = "*"
-hyper = "0.6"
+url = "0.2"
diff --git a/components/devtools_traits/Cargo.toml b/components/devtools_traits/Cargo.toml
index 9cdd5d1311a..1dc3cfdc4a1 100644
--- a/components/devtools_traits/Cargo.toml
+++ b/components/devtools_traits/Cargo.toml
@@ -7,6 +7,10 @@ authors = ["The Servo Project Developers"]
 name = "devtools_traits"
 path = "lib.rs"
 
+[dependencies.hyper]
+version = "0.6"
+features = [ "serde-serialization" ]
+
 [dependencies.msg]
 path = "../msg"
 
@@ -16,6 +20,5 @@ path = "../util"
 [dependencies]
 time = "*"
 rustc-serialize = "0.3"
-url = "*"
-hyper = "0.6"
+url = "0.2"
 bitflags = "*"
diff --git a/components/gfx/Cargo.toml b/components/gfx/Cargo.toml
index b0376d7e335..eaf53aac46b 100644
--- a/components/gfx/Cargo.toml
+++ b/components/gfx/Cargo.toml
@@ -47,7 +47,7 @@ path = "../script_traits"
 [dependencies]
 log = "*"
 fnv = "1.0"
-url = "0.2.35"
+url = "0.2.36"
 time = "0.1.12"
 bitflags = "*"
 rustc-serialize = "0.3"
diff --git a/components/layout/Cargo.toml b/components/layout/Cargo.toml
index 5feddfb72eb..526c1f73a7f 100644
--- a/components/layout/Cargo.toml
+++ b/components/layout/Cargo.toml
@@ -62,7 +62,7 @@ git = "https://github.com/pcwalton/ipc-channel"
 log = "*"
 encoding = "0.2"
 fnv = "1.0"
-url = "0.2.35"
+url = "0.2.36"
 bitflags = "*"
 rustc-serialize = "0.3"
 libc = "*"
diff --git a/components/layout_traits/Cargo.toml b/components/layout_traits/Cargo.toml
index 94f3b9d0498..e7b0c54d998 100644
--- a/components/layout_traits/Cargo.toml
+++ b/components/layout_traits/Cargo.toml
@@ -29,7 +29,7 @@ path = "../util"
 git = "https://github.com/pcwalton/ipc-channel"
 
 [dependencies]
-url = "0.2.35"
+url = "0.2.36"
 euclid = "0.1"
 serde = "*"
 serde_macros = "*"
diff --git a/components/msg/Cargo.toml b/components/msg/Cargo.toml
index fefc32ef5b0..d645bddb58b 100644
--- a/components/msg/Cargo.toml
+++ b/components/msg/Cargo.toml
@@ -21,14 +21,21 @@ git = "https://github.com/servo/rust-layers"
 
 [dependencies.png]
 git = "https://github.com/servo/rust-png"
+features = [ "serde-serialization" ]
+
+[dependencies.hyper]
+version = "0.6"
+features = [ "serde-serialization" ]
+
+[dependencies.url]
+version = "0.2.36"
+features = [ "serde_serialization" ]
 
 [dependencies.ipc-channel]
 git = "https://github.com/pcwalton/ipc-channel"
 
 [dependencies]
-url = "0.2.35"
 bitflags = "*"
-hyper = "0.6"
 rustc-serialize = "0.3.4"
 euclid = "0.1"
 serde = "*"
diff --git a/components/msg/constellation_msg.rs b/components/msg/constellation_msg.rs
index 662e1bed34a..52b883615e5 100644
--- a/components/msg/constellation_msg.rs
+++ b/components/msg/constellation_msg.rs
@@ -6,13 +6,15 @@
 //! reduce coupling between these two components.
 
 use compositor_msg::Epoch;
+
 use euclid::rect::Rect;
 use euclid::size::TypedSize2D;
 use euclid::scale_factor::ScaleFactor;
 use hyper::header::Headers;
 use hyper::method::Method;
+use ipc_channel::ipc::IpcSender;
 use layers::geometry::DevicePixel;
-use png;
+use png::Image;
 use util::cursor::Cursor;
 use util::geometry::{PagePx, ViewportPx};
 use std::collections::HashMap;
@@ -31,20 +33,20 @@ impl ConstellationChan {
     }
 }
 
-#[derive(PartialEq, Eq, Copy, Clone, Debug)]
+#[derive(PartialEq, Eq, Copy, Clone, Debug, Deserialize, Serialize)]
 pub enum IFrameSandboxState {
     IFrameSandboxed,
     IFrameUnsandboxed
 }
 
 // We pass this info to various tasks, so it lives in a separate, cloneable struct.
-#[derive(Clone, Copy)]
+#[derive(Clone, Copy, Deserialize, Serialize)]
 pub struct Failure {
     pub pipeline_id: PipelineId,
     pub parent_info: Option<(PipelineId, SubpageId)>,
 }
 
-#[derive(Copy, Clone)]
+#[derive(Copy, Clone, Deserialize, Serialize)]
 pub struct WindowSizeData {
     /// The size of the initial layout viewport, before parsing an
     /// http://www.w3.org/TR/css-device-adapt/#initial-viewport
@@ -209,6 +211,7 @@ pub enum FocusType {
 }
 
 /// Messages from the compositor and script to the constellation.
+#[derive(Deserialize, Serialize)]
 pub enum Msg {
     Exit,
     Failure(Failure),
@@ -234,14 +237,14 @@ pub enum Msg {
     TickAnimation(PipelineId),
     /// Request that the constellation send the current pipeline id for the provided frame
     /// id, or for the root frame if this is None, over a provided channel
-    GetPipeline(Option<FrameId>, Sender<Option<PipelineId>>),
+    GetPipeline(Option<FrameId>, IpcSender<Option<PipelineId>>),
     /// Request that the constellation send the FrameId corresponding to the document
     /// with the provided parent pipeline id and subpage id
-    GetFrame(PipelineId, SubpageId, Sender<Option<FrameId>>),
+    GetFrame(PipelineId, SubpageId, IpcSender<Option<FrameId>>),
     /// Notifies the constellation that this frame has received focus.
     Focus(PipelineId),
     /// Requests that the constellation retrieve the current contents of the clipboard
-    GetClipboardContents(Sender<String>),
+    GetClipboardContents(IpcSender<String>),
     /// Dispatch a webdriver command
     WebDriverCommand(WebDriverCommandMsg),
     /// Notifies the constellation that the viewport has been constrained in some manner
@@ -256,7 +259,7 @@ pub enum Msg {
     HeadParsed,
 }
 
-#[derive(Clone, Eq, PartialEq)]
+#[derive(Clone, Eq, PartialEq, Deserialize, Serialize)]
 pub enum AnimationState {
     AnimationsPresent,
     AnimationCallbacksPresent,
@@ -265,6 +268,7 @@ pub enum AnimationState {
 }
 
 // https://developer.mozilla.org/en-US/docs/Web/API/Using_the_Browser_API#Events
+#[derive(Deserialize, Serialize)]
 pub enum MozBrowserEvent {
     /// Sent when the scroll position within a browser <iframe> changes.
     AsyncScroll,
@@ -329,16 +333,17 @@ impl MozBrowserEvent {
     }
 }
 
+#[derive(Deserialize, Serialize)]
 pub enum WebDriverCommandMsg {
-    LoadUrl(PipelineId, LoadData, Sender<LoadStatus>),
+    LoadUrl(PipelineId, LoadData, IpcSender<LoadStatus>),
     ScriptCommand(PipelineId, WebDriverScriptCommand),
-    TakeScreenshot(PipelineId, Sender<Option<png::Image>>)
+    TakeScreenshot(PipelineId, IpcSender<Option<Image>>)
 }
 
 /// Similar to net::resource_task::LoadData
 /// can be passed to LoadUrl to load a page with GET/POST
 /// parameters or headers
-#[derive(Clone)]
+#[derive(Clone, Deserialize, Serialize)]
 pub struct LoadData {
     pub url: Url,
     pub method: Method,
@@ -357,16 +362,16 @@ impl LoadData {
     }
 }
 
-#[derive(Clone, PartialEq, Eq, Copy, Hash, Debug)]
+#[derive(Clone, PartialEq, Eq, Copy, Hash, Debug, Deserialize, Serialize)]
 pub enum NavigationDirection {
     Forward,
     Back,
 }
 
-#[derive(Clone, PartialEq, Eq, Copy, Hash, Debug)]
+#[derive(Clone, PartialEq, Eq, Copy, Hash, Debug, Deserialize, Serialize)]
 pub struct FrameId(pub u32);
 
-#[derive(Clone, PartialEq, Eq, Copy, Hash, Debug)]
+#[derive(Clone, PartialEq, Eq, Copy, Hash, Debug, Deserialize, Serialize)]
 pub struct WorkerId(pub u32);
 
 #[derive(Clone, PartialEq, Eq, Copy, Hash, Debug, Deserialize, Serialize)]
diff --git a/components/msg/webdriver_msg.rs b/components/msg/webdriver_msg.rs
index bc57f58fa28..0c2d8860a96 100644
--- a/components/msg/webdriver_msg.rs
+++ b/components/msg/webdriver_msg.rs
@@ -2,23 +2,25 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use rustc_serialize::json::{Json, ToJson};
 use constellation_msg::{PipelineId, SubpageId};
 
-use std::sync::mpsc::Sender;
+use ipc_channel::ipc::IpcSender;
+use rustc_serialize::json::{Json, ToJson};
 
+#[derive(Deserialize, Serialize)]
 pub enum WebDriverScriptCommand {
-    ExecuteScript(String, Sender<WebDriverJSResult>),
-    ExecuteAsyncScript(String, Sender<WebDriverJSResult>),
-    FindElementCSS(String, Sender<Result<Option<String>, ()>>),
-    FindElementsCSS(String, Sender<Result<Vec<String>, ()>>),
-    GetActiveElement(Sender<Option<String>>),
-    GetElementTagName(String, Sender<Result<String, ()>>),
-    GetElementText(String, Sender<Result<String, ()>>),
-    GetFrameId(WebDriverFrameId, Sender<Result<Option<(PipelineId, SubpageId)>, ()>>),
-    GetTitle(Sender<String>)
+    ExecuteScript(String, IpcSender<WebDriverJSResult>),
+    ExecuteAsyncScript(String, IpcSender<WebDriverJSResult>),
+    FindElementCSS(String, IpcSender<Result<Option<String>, ()>>),
+    FindElementsCSS(String, IpcSender<Result<Vec<String>, ()>>),
+    GetActiveElement(IpcSender<Option<String>>),
+    GetElementTagName(String, IpcSender<Result<String, ()>>),
+    GetElementText(String, IpcSender<Result<String, ()>>),
+    GetFrameId(WebDriverFrameId, IpcSender<Result<Option<(PipelineId, SubpageId)>, ()>>),
+    GetTitle(IpcSender<String>)
 }
 
+#[derive(Deserialize, Serialize)]
 pub enum WebDriverJSValue {
     Undefined,
     Null,
@@ -28,6 +30,7 @@ pub enum WebDriverJSValue {
     // TODO: Object and WebElement
 }
 
+#[derive(Deserialize, Serialize)]
 pub enum WebDriverJSError {
     Timeout,
     UnknownType
@@ -35,6 +38,7 @@ pub enum WebDriverJSError {
 
 pub type WebDriverJSResult = Result<WebDriverJSValue, WebDriverJSError>;
 
+#[derive(Deserialize, Serialize)]
 pub enum WebDriverFrameId {
     Short(u16),
     Element(String),
@@ -53,6 +57,7 @@ impl ToJson for WebDriverJSValue {
     }
 }
 
+#[derive(Deserialize, Serialize)]
 pub enum LoadStatus {
     LoadComplete,
     LoadTimeout
diff --git a/components/net/Cargo.toml b/components/net/Cargo.toml
index 17d3ee06d61..6773518e864 100644
--- a/components/net/Cargo.toml
+++ b/components/net/Cargo.toml
@@ -18,17 +18,21 @@ path = "../devtools_traits"
 
 [dependencies.png]
 git = "https://github.com/servo/rust-png"
+features = [ "serde-serialization" ]
+
+[dependencies.hyper]
+version = "0.6"
+features = [ "serde-serialization" ]
 
 [dependencies]
 log = "*"
-url = "0.2.35"
+url = "0.2.36"
 time = "0.1.17"
 openssl="0.6.1"
 rustc-serialize = "0.3"
 cookie="*"
 regex = "0.1.14"
 regex_macros = "0.1.8"
-hyper = "0.6"
 flate2 = "0.2.0"
 uuid = "0.1.16"
 euclid = "0.1"
diff --git a/components/net_traits/Cargo.toml b/components/net_traits/Cargo.toml
index 0cf033bd1bd..d16deebf4f3 100644
--- a/components/net_traits/Cargo.toml
+++ b/components/net_traits/Cargo.toml
@@ -9,6 +9,7 @@ path = "lib.rs"
 
 [dependencies.png]
 git = "https://github.com/servo/rust-png"
+features = [ "serde-serialization" ]
 
 [dependencies.util]
 path = "../util"
@@ -19,10 +20,13 @@ path = "../msg"
 [dependencies.stb_image]
 git = "https://github.com/servo/rust-stb-image"
 
+[dependencies.hyper]
+version = "0.6"
+features = [ "serde-serialization" ]
+
 [dependencies]
 log = "*"
-url = "0.2.35"
-hyper = "0.6"
+url = "0.2.36"
 euclid = "0.1"
 serde = "*"
 serde_macros = "*"
diff --git a/components/profile_traits/Cargo.toml b/components/profile_traits/Cargo.toml
index e7f5f275b79..509565deb4b 100644
--- a/components/profile_traits/Cargo.toml
+++ b/components/profile_traits/Cargo.toml
@@ -9,5 +9,5 @@ path = "lib.rs"
 
 [dependencies]
 time = "0.1.12"
-url = "0.2.35"
+url = "0.2.36"
 
diff --git a/components/script/Cargo.toml b/components/script/Cargo.toml
index 0731d06b1be..a06eabe8875 100644
--- a/components/script/Cargo.toml
+++ b/components/script/Cargo.toml
@@ -52,8 +52,8 @@ git = "https://github.com/servo/rust-selectors"
 git = "https://github.com/servo/rust-mozjs"
 
 [dependencies.url]
-version = "0.2.33"
-features = ["query_encoding"]
+version = "0.2.36"
+features = ["query_encoding", "serde_serialization"]
 
 [dependencies.offscreen_gl_context]
 git = "https://github.com/ecoal95/rust-offscreen-rendering-context"
@@ -61,6 +61,10 @@ git = "https://github.com/ecoal95/rust-offscreen-rendering-context"
 [dependencies.ipc-channel]
 git = "https://github.com/pcwalton/ipc-channel"
 
+[dependencies.hyper]
+version = "0.6"
+features = [ "serde-serialization" ]
+
 [dependencies]
 log = "*"
 encoding = "0.2"
@@ -69,7 +73,6 @@ time = "0.1.12"
 bitflags = "*"
 rustc-serialize = "*"
 libc = "*"
-hyper = "0.6"
 cssparser = "0.3.1"
 unicase = "0.1"
 num = "0.1.24"
@@ -82,3 +85,4 @@ string_cache_plugin = "0.1"
 euclid = "0.1"
 tendril = "0.1.1"
 rand = "0.3"
+serde = "*"
diff --git a/components/script/clipboard_provider.rs b/components/script/clipboard_provider.rs
index af67919125b..facdf4aca14 100644
--- a/components/script/clipboard_provider.rs
+++ b/components/script/clipboard_provider.rs
@@ -5,6 +5,7 @@
 use msg::constellation_msg::ConstellationChan;
 use msg::constellation_msg::Msg as ConstellationMsg;
 
+use ipc_channel::ipc;
 use std::borrow::ToOwned;
 use std::sync::mpsc::channel;
 
@@ -17,7 +18,7 @@ pub trait ClipboardProvider {
 
 impl ClipboardProvider for ConstellationChan {
     fn clipboard_contents(&mut self) -> String {
-        let (tx, rx) = channel();
+        let (tx, rx) = ipc::channel().unwrap();
         self.0.send(ConstellationMsg::GetClipboardContents(tx)).unwrap();
         rx.recv().unwrap()
     }
diff --git a/components/script/dom/bindings/trace.rs b/components/script/dom/bindings/trace.rs
index 5ed5ed0bb52..f7f8c527d9a 100644
--- a/components/script/dom/bindings/trace.rs
+++ b/components/script/dom/bindings/trace.rs
@@ -45,6 +45,7 @@ use euclid::size::Size2D;
 use html5ever::tree_builder::QuirksMode;
 use hyper::header::Headers;
 use hyper::method::Method;
+use ipc_channel::ipc::IpcSender;
 use js::jsapi::{JSObject, JSTracer, JSGCTraceKind, JS_CallValueTracer, JS_CallObjectTracer, GCTraceKindToAscii, Heap};
 use js::jsapi::JS_CallUnbarrieredObjectTracer;
 use js::jsval::JSVal;
@@ -61,6 +62,7 @@ use msg::compositor_msg::ScriptListener;
 use msg::constellation_msg::ConstellationChan;
 use net_traits::image::base::Image;
 use profile_traits::mem::ProfilerChan;
+use serde::Serialize;
 use util::str::{LengthOrPercentageOrAuto};
 use std::cell::{Cell, UnsafeCell, RefCell};
 use std::collections::{HashMap, HashSet};
@@ -344,6 +346,13 @@ impl JSTraceable for Box<LayoutRPC+'static> {
     }
 }
 
+impl<T> JSTraceable for IpcSender<T> where T: Serialize {
+    #[inline]
+    fn trace(&self, _: *mut JSTracer) {
+        // Do nothing
+    }
+}
+
 impl JSTraceable for () {
     #[inline]
     fn trace(&self, _trc: *mut JSTracer) {
diff --git a/components/script/dom/window.rs b/components/script/dom/window.rs
index 845f7ea7521..9eca84edac4 100644
--- a/components/script/dom/window.rs
+++ b/components/script/dom/window.rs
@@ -51,6 +51,7 @@ use util::opts;
 use util::str::{DOMString,HTML_SPACE_CHARACTERS};
 
 use euclid::{Point2D, Rect, Size2D};
+use ipc_channel::ipc::IpcSender;
 use js::jsapi::{Evaluate2, MutableHandleValue};
 use js::jsapi::{JSContext, HandleValue};
 use js::jsapi::{JS_GC, JS_GetRuntime, JSAutoCompartment, JSAutoRequest};
@@ -185,7 +186,7 @@ pub struct Window {
     pending_reflow_count: Cell<u32>,
 
     /// A channel for communicating results of async scripts back to the webdriver server
-    webdriver_script_chan: RefCell<Option<Sender<WebDriverJSResult>>>,
+    webdriver_script_chan: RefCell<Option<IpcSender<WebDriverJSResult>>>,
 
     /// The current state of the window object
     current_state: Cell<WindowState>,
@@ -562,7 +563,7 @@ pub trait WindowHelpers {
     fn emit_timeline_marker(self, marker: TimelineMarker);
     fn set_devtools_timeline_marker(self, marker: TimelineMarkerType, reply: Sender<TimelineMarker>);
     fn drop_devtools_timeline_markers(self);
-    fn set_webdriver_script_chan(self, chan: Option<Sender<WebDriverJSResult>>);
+    fn set_webdriver_script_chan(self, chan: Option<IpcSender<WebDriverJSResult>>);
     fn is_alive(self) -> bool;
     fn parent(self) -> Option<Root<Window>>;
 }
@@ -945,7 +946,7 @@ impl<'a> WindowHelpers for &'a Window {
         *self.devtools_marker_sender.borrow_mut() = None;
     }
 
-    fn set_webdriver_script_chan(self, chan: Option<Sender<WebDriverJSResult>>) {
+    fn set_webdriver_script_chan(self, chan: Option<IpcSender<WebDriverJSResult>>) {
         *self.webdriver_script_chan.borrow_mut() = chan;
     }
 
diff --git a/components/script/lib.rs b/components/script/lib.rs
index 80390b3a429..c57c0de7998 100644
--- a/components/script/lib.rs
+++ b/components/script/lib.rs
@@ -53,6 +53,7 @@ extern crate net_traits;
 extern crate num;
 extern crate rustc_serialize;
 extern crate rustc_unicode;
+extern crate serde;
 extern crate time;
 extern crate canvas;
 extern crate canvas_traits;
diff --git a/components/script/webdriver_handlers.rs b/components/script/webdriver_handlers.rs
index c724b1b7348..591e38eb52b 100644
--- a/components/script/webdriver_handlers.rs
+++ b/components/script/webdriver_handlers.rs
@@ -22,8 +22,8 @@ use script_task::get_page;
 use js::jsapi::{RootedValue, HandleValue};
 use js::jsval::UndefinedValue;
 
+use ipc_channel::ipc::IpcSender;
 use std::rc::Rc;
-use std::sync::mpsc::Sender;
 
 fn find_node_by_unique_id(page: &Rc<Page>, pipeline: PipelineId, node_id: String) -> Option<Root<Node>> {
     let page = get_page(&*page, pipeline);
@@ -58,7 +58,10 @@ pub fn jsval_to_webdriver(cx: *mut JSContext, val: HandleValue) -> WebDriverJSRe
     }
 }
 
-pub fn handle_execute_script(page: &Rc<Page>, pipeline: PipelineId, eval: String, reply: Sender<WebDriverJSResult>) {
+pub fn handle_execute_script(page: &Rc<Page>,
+                             pipeline: PipelineId,
+                             eval: String,
+                             reply: IpcSender<WebDriverJSResult>) {
     let page = get_page(&*page, pipeline);
     let window = page.window();
     let cx = window.r().get_cx();
@@ -68,8 +71,10 @@ pub fn handle_execute_script(page: &Rc<Page>, pipeline: PipelineId, eval: String
     reply.send(jsval_to_webdriver(cx, rval.handle())).unwrap();
 }
 
-pub fn handle_execute_async_script(page: &Rc<Page>, pipeline: PipelineId, eval: String,
-                                   reply: Sender<WebDriverJSResult>) {
+pub fn handle_execute_async_script(page: &Rc<Page>,
+                                   pipeline: PipelineId,
+                                   eval: String,
+                                   reply: IpcSender<WebDriverJSResult>) {
     let page = get_page(&*page, pipeline);
     let window = page.window();
     let cx = window.r().get_cx();
@@ -81,7 +86,7 @@ pub fn handle_execute_async_script(page: &Rc<Page>, pipeline: PipelineId, eval:
 pub fn handle_get_frame_id(page: &Rc<Page>,
                            pipeline: PipelineId,
                            webdriver_frame_id: WebDriverFrameId,
-                           reply: Sender<Result<Option<(PipelineId, SubpageId)>, ()>>) {
+                           reply: IpcSender<Result<Option<(PipelineId, SubpageId)>, ()>>) {
     let window = match webdriver_frame_id {
         WebDriverFrameId::Short(_) => {
             // This isn't supported yet
@@ -109,7 +114,7 @@ pub fn handle_get_frame_id(page: &Rc<Page>,
 }
 
 pub fn handle_find_element_css(page: &Rc<Page>, _pipeline: PipelineId, selector: String,
-                               reply: Sender<Result<Option<String>, ()>>) {
+                               reply: IpcSender<Result<Option<String>, ()>>) {
     reply.send(match page.document().r().QuerySelector(selector.clone()) {
         Ok(node) => {
             let result = node.map(|x| NodeCast::from_ref(x.r()).get_unique_id());
@@ -119,8 +124,10 @@ pub fn handle_find_element_css(page: &Rc<Page>, _pipeline: PipelineId, selector:
     }).unwrap();
 }
 
-pub fn handle_find_elements_css(page: &Rc<Page>, _pipeline: PipelineId, selector: String,
-                                reply: Sender<Result<Vec<String>, ()>>) {
+pub fn handle_find_elements_css(page: &Rc<Page>,
+                                _pipeline: PipelineId,
+                                selector: String,
+                                reply: IpcSender<Result<Vec<String>, ()>>) {
     reply.send(match page.document().r().QuerySelectorAll(selector.clone()) {
         Ok(ref nodes) => {
             let mut result = Vec::with_capacity(nodes.r().Length() as usize);
@@ -137,16 +144,21 @@ pub fn handle_find_elements_css(page: &Rc<Page>, _pipeline: PipelineId, selector
     }).unwrap();
 }
 
-pub fn handle_get_active_element(page: &Rc<Page>, _pipeline: PipelineId, reply: Sender<Option<String>>) {
+pub fn handle_get_active_element(page: &Rc<Page>,
+                                 _pipeline: PipelineId,
+                                 reply: IpcSender<Option<String>>) {
     reply.send(page.document().r().GetActiveElement().map(
         |elem| NodeCast::from_ref(elem.r()).get_unique_id())).unwrap();
 }
 
-pub fn handle_get_title(page: &Rc<Page>, _pipeline: PipelineId, reply: Sender<String>) {
+pub fn handle_get_title(page: &Rc<Page>, _pipeline: PipelineId, reply: IpcSender<String>) {
     reply.send(page.document().r().Title()).unwrap();
 }
 
-pub fn handle_get_text(page: &Rc<Page>, pipeline: PipelineId, node_id: String, reply: Sender<Result<String, ()>>) {
+pub fn handle_get_text(page: &Rc<Page>,
+                       pipeline: PipelineId,
+                       node_id: String,
+                       reply: IpcSender<Result<String, ()>>) {
     reply.send(match find_node_by_unique_id(&*page, pipeline, node_id) {
         Some(ref node) => {
             Ok(node.r().GetTextContent().unwrap_or("".to_owned()))
@@ -155,7 +167,10 @@ pub fn handle_get_text(page: &Rc<Page>, pipeline: PipelineId, node_id: String, r
     }).unwrap();
 }
 
-pub fn handle_get_name(page: &Rc<Page>, pipeline: PipelineId, node_id: String, reply: Sender<Result<String, ()>>) {
+pub fn handle_get_name(page: &Rc<Page>,
+                       pipeline: PipelineId,
+                       node_id: String,
+                       reply: IpcSender<Result<String, ()>>) {
     reply.send(match find_node_by_unique_id(&*page, pipeline, node_id) {
         Some(node) => {
             let element = ElementCast::to_ref(node.r()).unwrap();
diff --git a/components/script_traits/Cargo.toml b/components/script_traits/Cargo.toml
index b9920c099f7..70b6dc2fd6d 100644
--- a/components/script_traits/Cargo.toml
+++ b/components/script_traits/Cargo.toml
@@ -26,7 +26,7 @@ path = "../devtools_traits"
 git = "https://github.com/pcwalton/ipc-channel"
 
 [dependencies]
-url = "0.2.35"
+url = "0.2.36"
 libc = "*"
 euclid = "0.1"
 serde = "*"
diff --git a/components/servo/Cargo.lock b/components/servo/Cargo.lock
index 94b8ada8efd..ff8c039ee28 100644
--- a/components/servo/Cargo.lock
+++ b/components/servo/Cargo.lock
@@ -24,7 +24,7 @@ dependencies = [
  "script_tests 0.0.1",
  "style_tests 0.0.1",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
  "util_tests 0.0.1",
  "webdriver_server 0.0.1",
@@ -65,7 +65,7 @@ dependencies = [
  "freetype 0.1.0 (git+https://github.com/servo/rust-freetype)",
  "freetype-sys 2.4.11 (git+https://github.com/servo/libfreetype2)",
  "libc 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "skia 0.0.20130412 (git+https://github.com/servo/skia)",
  "x11 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -178,7 +178,7 @@ dependencies = [
  "script_traits 0.0.1",
  "style 0.0.1",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -190,7 +190,7 @@ dependencies = [
  "openssl 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -239,12 +239,12 @@ name = "devtools"
 version = "0.0.1"
 dependencies = [
  "devtools_traits 0.0.1",
- "hyper 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -253,11 +253,11 @@ name = "devtools_traits"
 version = "0.0.1"
 dependencies = [
  "bitflags 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -344,7 +344,7 @@ dependencies = [
  "num 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -445,14 +445,14 @@ dependencies = [
  "rand 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "script_traits 0.0.1",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "skia 0.0.20130412 (git+https://github.com/servo/skia)",
  "smallvec 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "style 0.0.1",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -539,7 +539,7 @@ dependencies = [
  "net 0.0.1",
  "script_traits 0.0.1",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
  "x11 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -603,7 +603,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "hyper"
-version = "0.6.3"
+version = "0.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cookie 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -614,12 +614,13 @@ dependencies = [
  "num_cpus 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "solicit 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
  "traitobject 0.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "typeable 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicase 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -641,7 +642,7 @@ source = "git+https://github.com/pcwalton/ipc-channel#1043d943a4da75ba302cfbe0b5
 dependencies = [
  "libc 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -722,13 +723,13 @@ dependencies = [
  "script 0.0.1",
  "script_traits 0.0.1",
  "selectors 0.1.0 (git+https://github.com/servo/rust-selectors)",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "smallvec 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache_plugin 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "style 0.0.1",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -743,9 +744,9 @@ dependencies = [
  "net_traits 0.0.1",
  "profile_traits 0.0.1",
  "script_traits 0.0.1",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -831,16 +832,16 @@ dependencies = [
  "bitflags 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "core-foundation 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "euclid 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "io-surface 0.1.0 (git+https://github.com/servo/io-surface-rs)",
  "ipc-channel 0.1.0 (git+https://github.com/pcwalton/ipc-channel)",
  "layers 0.1.0 (git+https://github.com/servo/rust-layers)",
  "png 0.1.0 (git+https://github.com/servo/rust-png)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "style 0.0.1",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -852,7 +853,7 @@ dependencies = [
  "devtools_traits 0.0.1",
  "euclid 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "flate2 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "net_traits 0.0.1",
  "openssl 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -861,7 +862,7 @@ dependencies = [
  "regex_macros 0.1.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
  "uuid 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -871,10 +872,10 @@ name = "net_tests"
 version = "0.0.1"
 dependencies = [
  "cookie 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "net 0.0.1",
  "net_traits 0.0.1",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -883,14 +884,14 @@ name = "net_traits"
 version = "0.0.1"
 dependencies = [
  "euclid 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
  "png 0.1.0 (git+https://github.com/servo/rust-png)",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "stb_image 0.1.0 (git+https://github.com/servo/rust-stb-image)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -1023,17 +1024,19 @@ dependencies = [
 [[package]]
 name = "png"
 version = "0.1.0"
-source = "git+https://github.com/servo/rust-png#653902184ce95d2dc44cd4674c8b273fe6a385a9"
+source = "git+https://github.com/servo/rust-png#3c3105672622c76fbb079a96384f78e4ff8b68cf"
 dependencies = [
  "gcc 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "png-sys 1.6.16 (git+https://github.com/servo/rust-png)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "png-sys"
 version = "1.6.16"
-source = "git+https://github.com/servo/rust-png#653902184ce95d2dc44cd4674c8b273fe6a385a9"
+source = "git+https://github.com/servo/rust-png#3c3105672622c76fbb079a96384f78e4ff8b68cf"
 
 [[package]]
 name = "profile"
@@ -1053,7 +1056,7 @@ name = "profile_traits"
 version = "0.0.1"
 dependencies = [
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1131,7 +1134,7 @@ dependencies = [
  "euclid 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "fnv 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "html5ever 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.1.0 (git+https://github.com/pcwalton/ipc-channel)",
  "js 0.1.0 (git+https://github.com/servo/rust-mozjs)",
  "layout_traits 0.0.1",
@@ -1147,6 +1150,7 @@ dependencies = [
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "script_traits 0.0.1",
  "selectors 0.1.0 (git+https://github.com/servo/rust-selectors)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "smallvec 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache_plugin 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1154,7 +1158,7 @@ dependencies = [
  "tendril 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicase 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
  "uuid 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "websocket 0.12.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1179,9 +1183,9 @@ dependencies = [
  "msg 0.0.1",
  "net_traits 0.0.1",
  "profile_traits 0.0.1",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -1202,7 +1206,7 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "0.4.2"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "num 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1283,7 +1287,7 @@ dependencies = [
  "phf 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "phf_macros 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache_plugin 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache_shared 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1319,12 +1323,12 @@ dependencies = [
  "plugins 0.0.1",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "selectors 0.1.0 (git+https://github.com/servo/rust-selectors)",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "smallvec 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache_plugin 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -1338,7 +1342,7 @@ dependencies = [
  "string_cache 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache_plugin 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "style 0.0.1",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -1398,12 +1402,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "url"
-version = "0.2.35"
+version = "0.2.36"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "encoding 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "matches 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1430,10 +1435,10 @@ dependencies = [
  "plugins 0.0.1",
  "rand 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "smallvec 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1460,7 +1465,7 @@ name = "webdriver"
 version = "0.2.0"
 source = "git+https://github.com/jgraham/webdriver-rust.git#caf906e67d818f2db5d4f31b08abb0fee561ec43"
 dependencies = [
- "hyper 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1471,11 +1476,12 @@ dependencies = [
 name = "webdriver_server"
 version = "0.0.1"
 dependencies = [
+ "ipc-channel 0.1.0 (git+https://github.com/pcwalton/ipc-channel)",
  "log 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
  "png 0.1.0 (git+https://github.com/servo/rust-png)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
  "uuid 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "webdriver 0.2.0 (git+https://github.com/jgraham/webdriver-rust.git)",
@@ -1488,12 +1494,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 0.3.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicase 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
diff --git a/components/servo/Cargo.toml b/components/servo/Cargo.toml
index 43bed7d2c8e..de4ea392ae9 100644
--- a/components/servo/Cargo.toml
+++ b/components/servo/Cargo.toml
@@ -38,6 +38,7 @@ harness = false
 
 [dependencies.png]
 git = "https://github.com/servo/rust-png"
+features = [ "serde-serialization" ]
 
 [features]
 default = ["glutin_app", "window"]
@@ -101,7 +102,7 @@ optional = true
 
 [dependencies]
 env_logger = "*"
-url = "0.2.35"
+url = "0.2.36"
 time = "0.1.12"
 bitflags = "*"
 libc = "*"
diff --git a/components/style/Cargo.toml b/components/style/Cargo.toml
index 3fe248a56c0..c6451389e0d 100644
--- a/components/style/Cargo.toml
+++ b/components/style/Cargo.toml
@@ -25,7 +25,7 @@ encoding = "0.2"
 fnv = "1.0"
 rustc-serialize = "0.3"
 matches = "0.1"
-url = "0.2.35"
+url = "0.2.36"
 bitflags = "*"
 cssparser = "0.3.2"
 num = "0.1.24"
diff --git a/components/style/lib.rs b/components/style/lib.rs
index d4d928642da..ca3aa62cc4c 100644
--- a/components/style/lib.rs
+++ b/components/style/lib.rs
@@ -11,6 +11,7 @@
 #![feature(plugin)]
 #![feature(vec_push_all)]
 
+#![plugin(serde_macros)]
 #![plugin(string_cache_plugin)]
 #![plugin(serde_macros)]
 #![plugin(plugins)]
diff --git a/components/style/viewport.rs b/components/style/viewport.rs
index 100879a1621..6236c3cd048 100644
--- a/components/style/viewport.rs
+++ b/components/style/viewport.rs
@@ -305,7 +305,7 @@ impl<'a, I> ViewportDescriptorDeclarationCascade for I
     }
 }
 
-#[derive(Debug, PartialEq)]
+#[derive(Debug, PartialEq, Deserialize, Serialize)]
 pub struct ViewportConstraints {
     pub size: TypedSize2D<ViewportPx, f32>,
 
diff --git a/components/util/Cargo.toml b/components/util/Cargo.toml
index 8ed33f5bd79..61687af1e95 100644
--- a/components/util/Cargo.toml
+++ b/components/util/Cargo.toml
@@ -31,7 +31,7 @@ smallvec = "0.1"
 num_cpus = "0.2.2"
 cssparser = "0.3.1"
 num = "0.1.24"
-url = "*"
+url = "0.2.36"
 euclid = "0.1"
 serde = "*"
 serde_macros = "*"
diff --git a/components/webdriver_server/Cargo.toml b/components/webdriver_server/Cargo.toml
index 0a682258501..68edb4f86e0 100644
--- a/components/webdriver_server/Cargo.toml
+++ b/components/webdriver_server/Cargo.toml
@@ -18,9 +18,13 @@ git = "https://github.com/jgraham/webdriver-rust.git"
 
 [dependencies.png]
 git = "https://github.com/servo/rust-png"
+features = [ "serde-serialization" ]
+
+[dependencies.ipc-channel]
+git = "https://github.com/pcwalton/ipc-channel"
 
 [dependencies]
 log = "*"
 rustc-serialize = "0.3.4"
-url = "0.2.35"
+url = "0.2.36"
 uuid = "*"
diff --git a/components/webdriver_server/lib.rs b/components/webdriver_server/lib.rs
index c13ff457ca1..6713fbfe453 100644
--- a/components/webdriver_server/lib.rs
+++ b/components/webdriver_server/lib.rs
@@ -17,11 +17,11 @@ extern crate url;
 extern crate util;
 extern crate rustc_serialize;
 extern crate uuid;
+extern crate ipc_channel;
 
 use msg::constellation_msg::{ConstellationChan, LoadData, FrameId, PipelineId, NavigationDirection,
                              WebDriverCommandMsg};
 use msg::constellation_msg::Msg as ConstellationMsg;
-use std::sync::mpsc::{channel, Receiver};
 use msg::webdriver_msg::{WebDriverFrameId, WebDriverScriptCommand, WebDriverJSError, WebDriverJSResult, LoadStatus};
 
 use url::Url;
@@ -35,6 +35,7 @@ use webdriver::server::{self, WebDriverHandler, Session};
 use webdriver::error::{WebDriverResult, WebDriverError, ErrorStatus};
 use util::task::spawn_named;
 use uuid::Uuid;
+use ipc_channel::ipc::{self, IpcReceiver};
 
 use std::borrow::ToOwned;
 use rustc_serialize::json::{Json, ToJson};
@@ -133,7 +134,7 @@ impl Handler {
     }
 
     fn get_pipeline(&self, frame_id: Option<FrameId>) -> Option<PipelineId> {
-        let (sender, reciever) = channel();
+        let (sender, reciever) = ipc::channel().unwrap();
         let ConstellationChan(ref const_chan) = self.constellation_chan;
         const_chan.send(ConstellationMsg::GetPipeline(frame_id, sender)).unwrap();
 
@@ -168,7 +169,7 @@ impl Handler {
 
         let pipeline_id = try!(self.get_root_pipeline());
 
-        let (sender, reciever) = channel();
+        let (sender, reciever) = ipc::channel().unwrap();
 
         let load_data = LoadData::new(url);
         let ConstellationChan(ref const_chan) = self.constellation_chan;
@@ -205,7 +206,7 @@ impl Handler {
     fn handle_get_title(&self) -> WebDriverResult<WebDriverResponse> {
         let pipeline_id = try!(self.get_root_pipeline());
 
-        let (sender, reciever) = channel();
+        let (sender, reciever) = ipc::channel().unwrap();
         let ConstellationChan(ref const_chan) = self.constellation_chan;
         let cmd_msg = WebDriverCommandMsg::ScriptCommand(pipeline_id,
                                                          WebDriverScriptCommand::GetTitle(sender));
@@ -236,7 +237,7 @@ impl Handler {
                                            "Unsupported locator strategy"))
         }
 
-        let (sender, reciever) = channel();
+        let (sender, reciever) = ipc::channel().unwrap();
         let ConstellationChan(ref const_chan) = self.constellation_chan;
         let cmd = WebDriverScriptCommand::FindElementCSS(parameters.value.clone(), sender);
         let cmd_msg = WebDriverCommandMsg::ScriptCommand(pipeline_id, cmd);
@@ -276,7 +277,7 @@ impl Handler {
                                            "Selecting frame by id not supported"));
         }
         let pipeline_id = try!(self.get_frame_pipeline());
-        let (sender, reciever) = channel();
+        let (sender, reciever) = ipc::channel().unwrap();
         let cmd = WebDriverScriptCommand::GetFrameId(frame_id, sender);
         {
             let ConstellationChan(ref const_chan) = self.constellation_chan;
@@ -286,7 +287,7 @@ impl Handler {
 
         let frame = match reciever.recv().unwrap() {
             Ok(Some((pipeline_id, subpage_id))) => {
-                let (sender, reciever) = channel();
+                let (sender, reciever) = ipc::channel().unwrap();
                 let ConstellationChan(ref const_chan) = self.constellation_chan;
                 const_chan.send(ConstellationMsg::GetFrame(pipeline_id, subpage_id, sender)).unwrap();
                 reciever.recv().unwrap()
@@ -311,7 +312,7 @@ impl Handler {
                                            "Unsupported locator strategy"))
         }
 
-        let (sender, reciever) = channel();
+        let (sender, reciever) = ipc::channel().unwrap();
         let ConstellationChan(ref const_chan) = self.constellation_chan;
         let cmd = WebDriverScriptCommand::FindElementsCSS(parameters.value.clone(), sender);
         let cmd_msg = WebDriverCommandMsg::ScriptCommand(pipeline_id, cmd);
@@ -330,7 +331,7 @@ impl Handler {
     fn handle_get_element_text(&self, element: &WebElement) -> WebDriverResult<WebDriverResponse> {
         let pipeline_id = try!(self.get_frame_pipeline());
 
-        let (sender, reciever) = channel();
+        let (sender, reciever) = ipc::channel().unwrap();
         let ConstellationChan(ref const_chan) = self.constellation_chan;
         let cmd = WebDriverScriptCommand::GetElementText(element.id.clone(), sender);
         let cmd_msg = WebDriverCommandMsg::ScriptCommand(pipeline_id, cmd);
@@ -345,7 +346,7 @@ impl Handler {
     fn handle_get_active_element(&self) -> WebDriverResult<WebDriverResponse> {
         let pipeline_id = try!(self.get_frame_pipeline());
 
-        let (sender, reciever) = channel();
+        let (sender, reciever) = ipc::channel().unwrap();
         let ConstellationChan(ref const_chan) = self.constellation_chan;
         let cmd = WebDriverScriptCommand::GetActiveElement(sender);
         let cmd_msg = WebDriverCommandMsg::ScriptCommand(pipeline_id, cmd);
@@ -357,7 +358,7 @@ impl Handler {
     fn handle_get_element_tag_name(&self, element: &WebElement) -> WebDriverResult<WebDriverResponse> {
         let pipeline_id = try!(self.get_frame_pipeline());
 
-        let (sender, reciever) = channel();
+        let (sender, reciever) = ipc::channel().unwrap();
         let ConstellationChan(ref const_chan) = self.constellation_chan;
         let cmd = WebDriverScriptCommand::GetElementTagName(element.id.clone(), sender);
         let cmd_msg = WebDriverCommandMsg::ScriptCommand(pipeline_id, cmd);
@@ -382,7 +383,8 @@ impl Handler {
         Ok(WebDriverResponse::Void)
     }
 
-    fn handle_execute_script(&self, parameters: &JavascriptCommandParameters) -> WebDriverResult<WebDriverResponse> {
+    fn handle_execute_script(&self, parameters: &JavascriptCommandParameters)
+                             -> WebDriverResult<WebDriverResponse> {
         let func_body = &parameters.script;
         let args_string = "";
 
@@ -391,7 +393,7 @@ impl Handler {
         // it with a vec of arguments.
         let script = format!("(function() {{ {} }})({})", func_body, args_string);
 
-        let (sender, reciever) = channel();
+        let (sender, reciever) = ipc::channel().unwrap();
         let command = WebDriverScriptCommand::ExecuteScript(script, sender);
         self.execute_script(command, reciever)
     }
@@ -405,14 +407,15 @@ impl Handler {
             "setTimeout(webdriverTimeout, {}); (function(callback) {{ {} }})({})",
             self.script_timeout, func_body, args_string);
 
-        let (sender, reciever) = channel();
+        let (sender, reciever) = ipc::channel().unwrap();
         let command = WebDriverScriptCommand::ExecuteAsyncScript(script, sender);
         self.execute_script(command, reciever)
     }
 
     fn execute_script(&self,
                       command: WebDriverScriptCommand,
-                      reciever: Receiver<WebDriverJSResult>) -> WebDriverResult<WebDriverResponse> {
+                      reciever: IpcReceiver<WebDriverJSResult>)
+                      -> WebDriverResult<WebDriverResponse> {
         let pipeline_id = try!(self.get_frame_pipeline());
 
         let ConstellationChan(ref const_chan) = self.constellation_chan;
@@ -435,7 +438,7 @@ impl Handler {
         let iterations = 30_000 / interval;
 
         for _ in 0..iterations {
-            let (sender, reciever) = channel();
+            let (sender, reciever) = ipc::channel().unwrap();
             let ConstellationChan(ref const_chan) = self.constellation_chan;
             let cmd_msg = WebDriverCommandMsg::TakeScreenshot(pipeline_id, sender);
             const_chan.send(ConstellationMsg::WebDriverCommand(cmd_msg)).unwrap();
diff --git a/ports/cef/Cargo.lock b/ports/cef/Cargo.lock
index b27e8cc7490..cf7a519b8e4 100644
--- a/ports/cef/Cargo.lock
+++ b/ports/cef/Cargo.lock
@@ -28,7 +28,7 @@ dependencies = [
  "servo 0.0.1",
  "stb_image 0.1.0 (git+https://github.com/servo/rust-stb-image)",
  "style 0.0.1",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
  "x11 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -64,7 +64,7 @@ dependencies = [
  "freetype 0.1.0 (git+https://github.com/servo/rust-freetype)",
  "freetype-sys 2.4.11 (git+https://github.com/servo/libfreetype2)",
  "libc 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "skia 0.0.20130412 (git+https://github.com/servo/skia)",
  "x11 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -177,7 +177,7 @@ dependencies = [
  "script_traits 0.0.1",
  "style 0.0.1",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -189,7 +189,7 @@ dependencies = [
  "openssl 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -238,12 +238,12 @@ name = "devtools"
 version = "0.0.1"
 dependencies = [
  "devtools_traits 0.0.1",
- "hyper 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -252,11 +252,11 @@ name = "devtools_traits"
 version = "0.0.1"
 dependencies = [
  "bitflags 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -343,7 +343,7 @@ dependencies = [
  "num 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -444,14 +444,14 @@ dependencies = [
  "rand 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "script_traits 0.0.1",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "skia 0.0.20130412 (git+https://github.com/servo/skia)",
  "smallvec 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "style 0.0.1",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -531,7 +531,7 @@ dependencies = [
  "net 0.0.1",
  "script_traits 0.0.1",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
  "x11 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -595,7 +595,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "hyper"
-version = "0.6.3"
+version = "0.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cookie 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -606,12 +606,13 @@ dependencies = [
  "num_cpus 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "solicit 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
  "traitobject 0.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "typeable 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicase 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -633,7 +634,7 @@ source = "git+https://github.com/pcwalton/ipc-channel#1043d943a4da75ba302cfbe0b5
 dependencies = [
  "libc 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -714,13 +715,13 @@ dependencies = [
  "script 0.0.1",
  "script_traits 0.0.1",
  "selectors 0.1.0 (git+https://github.com/servo/rust-selectors)",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "smallvec 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache_plugin 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "style 0.0.1",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -735,9 +736,9 @@ dependencies = [
  "net_traits 0.0.1",
  "profile_traits 0.0.1",
  "script_traits 0.0.1",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -823,16 +824,16 @@ dependencies = [
  "bitflags 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "core-foundation 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "euclid 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "io-surface 0.1.0 (git+https://github.com/servo/io-surface-rs)",
  "ipc-channel 0.1.0 (git+https://github.com/pcwalton/ipc-channel)",
  "layers 0.1.0 (git+https://github.com/servo/rust-layers)",
  "png 0.1.0 (git+https://github.com/servo/rust-png)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "style 0.0.1",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -844,7 +845,7 @@ dependencies = [
  "devtools_traits 0.0.1",
  "euclid 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "flate2 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "net_traits 0.0.1",
  "openssl 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -853,7 +854,7 @@ dependencies = [
  "regex_macros 0.1.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
  "uuid 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -863,14 +864,14 @@ name = "net_traits"
 version = "0.0.1"
 dependencies = [
  "euclid 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
  "png 0.1.0 (git+https://github.com/servo/rust-png)",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "stb_image 0.1.0 (git+https://github.com/servo/rust-stb-image)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -1003,11 +1004,13 @@ dependencies = [
 [[package]]
 name = "png"
 version = "0.1.0"
-source = "git+https://github.com/servo/rust-png#653902184ce95d2dc44cd4674c8b273fe6a385a9"
+source = "git+https://github.com/servo/rust-png#3c3105672622c76fbb079a96384f78e4ff8b68cf"
 dependencies = [
  "gcc 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "png-sys 1.6.16 (git+https://github.com/servo/rust-png)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1033,7 +1036,7 @@ name = "profile_traits"
 version = "0.0.1"
 dependencies = [
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1111,7 +1114,7 @@ dependencies = [
  "euclid 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "fnv 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "html5ever 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.1.0 (git+https://github.com/pcwalton/ipc-channel)",
  "js 0.1.0 (git+https://github.com/servo/rust-mozjs)",
  "layout_traits 0.0.1",
@@ -1127,6 +1130,7 @@ dependencies = [
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "script_traits 0.0.1",
  "selectors 0.1.0 (git+https://github.com/servo/rust-selectors)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "smallvec 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache_plugin 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1134,7 +1138,7 @@ dependencies = [
  "tendril 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicase 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
  "uuid 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "websocket 0.12.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1151,9 +1155,9 @@ dependencies = [
  "msg 0.0.1",
  "net_traits 0.0.1",
  "profile_traits 0.0.1",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -1174,7 +1178,7 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "0.4.2"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "num 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1219,7 +1223,7 @@ dependencies = [
  "profile_traits 0.0.1",
  "script 0.0.1",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
  "webdriver_server 0.0.1",
 ]
@@ -1281,7 +1285,7 @@ dependencies = [
  "phf 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "phf_macros 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache_plugin 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache_shared 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1317,12 +1321,12 @@ dependencies = [
  "plugins 0.0.1",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "selectors 0.1.0 (git+https://github.com/servo/rust-selectors)",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "smallvec 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache_plugin 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -1382,12 +1386,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "url"
-version = "0.2.35"
+version = "0.2.36"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "encoding 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "matches 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1414,10 +1419,10 @@ dependencies = [
  "plugins 0.0.1",
  "rand 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "smallvec 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1434,7 +1439,7 @@ name = "webdriver"
 version = "0.2.0"
 source = "git+https://github.com/jgraham/webdriver-rust.git#caf906e67d818f2db5d4f31b08abb0fee561ec43"
 dependencies = [
- "hyper 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1445,11 +1450,12 @@ dependencies = [
 name = "webdriver_server"
 version = "0.0.1"
 dependencies = [
+ "ipc-channel 0.1.0 (git+https://github.com/pcwalton/ipc-channel)",
  "log 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
  "png 0.1.0 (git+https://github.com/servo/rust-png)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
  "uuid 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "webdriver 0.2.0 (git+https://github.com/jgraham/webdriver-rust.git)",
@@ -1462,12 +1468,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 0.3.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicase 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
diff --git a/ports/gonk/Cargo.lock b/ports/gonk/Cargo.lock
index 7cac84c7df3..fdeb2594a43 100644
--- a/ports/gonk/Cargo.lock
+++ b/ports/gonk/Cargo.lock
@@ -21,7 +21,7 @@ dependencies = [
  "script_traits 0.0.1",
  "servo 0.0.1",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -51,7 +51,7 @@ dependencies = [
  "freetype 0.1.0 (git+https://github.com/servo/rust-freetype)",
  "freetype-sys 2.4.11 (git+https://github.com/servo/libfreetype2)",
  "libc 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "skia 0.0.20130412 (git+https://github.com/servo/skia)",
  "x11 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -154,7 +154,7 @@ dependencies = [
  "script_traits 0.0.1",
  "style 0.0.1",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -166,7 +166,7 @@ dependencies = [
  "openssl 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -215,12 +215,12 @@ name = "devtools"
 version = "0.0.1"
 dependencies = [
  "devtools_traits 0.0.1",
- "hyper 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -229,11 +229,11 @@ name = "devtools_traits"
 version = "0.0.1"
 dependencies = [
  "bitflags 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -330,7 +330,7 @@ dependencies = [
  "num 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -423,14 +423,14 @@ dependencies = [
  "rand 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "script_traits 0.0.1",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "skia 0.0.20130412 (git+https://github.com/servo/skia)",
  "smallvec 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "style 0.0.1",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -529,7 +529,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "hyper"
-version = "0.6.3"
+version = "0.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cookie 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -540,12 +540,13 @@ dependencies = [
  "num_cpus 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "solicit 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
  "traitobject 0.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "typeable 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicase 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -567,7 +568,7 @@ source = "git+https://github.com/pcwalton/ipc-channel#1043d943a4da75ba302cfbe0b5
 dependencies = [
  "libc 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -648,13 +649,13 @@ dependencies = [
  "script 0.0.1",
  "script_traits 0.0.1",
  "selectors 0.1.0 (git+https://github.com/servo/rust-selectors)",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "smallvec 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache_plugin 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "style 0.0.1",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -669,9 +670,9 @@ dependencies = [
  "net_traits 0.0.1",
  "profile_traits 0.0.1",
  "script_traits 0.0.1",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -749,16 +750,16 @@ dependencies = [
  "bitflags 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "core-foundation 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "euclid 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "io-surface 0.1.0 (git+https://github.com/servo/io-surface-rs)",
  "ipc-channel 0.1.0 (git+https://github.com/pcwalton/ipc-channel)",
  "layers 0.1.0 (git+https://github.com/servo/rust-layers)",
  "png 0.1.0 (git+https://github.com/servo/rust-png)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "style 0.0.1",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -770,7 +771,7 @@ dependencies = [
  "devtools_traits 0.0.1",
  "euclid 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "flate2 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "net_traits 0.0.1",
  "openssl 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -779,7 +780,7 @@ dependencies = [
  "regex_macros 0.1.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
  "uuid 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -789,14 +790,14 @@ name = "net_traits"
 version = "0.0.1"
 dependencies = [
  "euclid 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
  "png 0.1.0 (git+https://github.com/servo/rust-png)",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "stb_image 0.1.0 (git+https://github.com/servo/rust-stb-image)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -911,17 +912,19 @@ dependencies = [
 [[package]]
 name = "png"
 version = "0.1.0"
-source = "git+https://github.com/servo/rust-png#653902184ce95d2dc44cd4674c8b273fe6a385a9"
+source = "git+https://github.com/servo/rust-png#3c3105672622c76fbb079a96384f78e4ff8b68cf"
 dependencies = [
  "gcc 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "png-sys 1.6.16 (git+https://github.com/servo/rust-png)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "png-sys"
 version = "1.6.16"
-source = "git+https://github.com/servo/rust-png#653902184ce95d2dc44cd4674c8b273fe6a385a9"
+source = "git+https://github.com/servo/rust-png#3c3105672622c76fbb079a96384f78e4ff8b68cf"
 
 [[package]]
 name = "profile"
@@ -941,7 +944,7 @@ name = "profile_traits"
 version = "0.0.1"
 dependencies = [
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1019,7 +1022,7 @@ dependencies = [
  "euclid 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "fnv 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "html5ever 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.1.0 (git+https://github.com/pcwalton/ipc-channel)",
  "js 0.1.0 (git+https://github.com/servo/rust-mozjs)",
  "layout_traits 0.0.1",
@@ -1035,6 +1038,7 @@ dependencies = [
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "script_traits 0.0.1",
  "selectors 0.1.0 (git+https://github.com/servo/rust-selectors)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "smallvec 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache_plugin 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1042,7 +1046,7 @@ dependencies = [
  "tendril 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicase 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
  "uuid 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "websocket 0.12.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1059,9 +1063,9 @@ dependencies = [
  "msg 0.0.1",
  "net_traits 0.0.1",
  "profile_traits 0.0.1",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -1082,7 +1086,7 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "0.4.2"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "num 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1126,7 +1130,7 @@ dependencies = [
  "profile_traits 0.0.1",
  "script 0.0.1",
  "time 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
  "webdriver_server 0.0.1",
 ]
@@ -1179,7 +1183,7 @@ dependencies = [
  "phf 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "phf_macros 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache_plugin 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache_shared 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1215,12 +1219,12 @@ dependencies = [
  "plugins 0.0.1",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "selectors 0.1.0 (git+https://github.com/servo/rust-selectors)",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "smallvec 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache_plugin 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
 ]
 
@@ -1280,12 +1284,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "url"
-version = "0.2.35"
+version = "0.2.36"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "encoding 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "matches 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1303,10 +1308,10 @@ dependencies = [
  "plugins 0.0.1",
  "rand 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_macros 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "smallvec 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1323,7 +1328,7 @@ name = "webdriver"
 version = "0.2.0"
 source = "git+https://github.com/jgraham/webdriver-rust.git#caf906e67d818f2db5d4f31b08abb0fee561ec43"
 dependencies = [
- "hyper 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1334,11 +1339,12 @@ dependencies = [
 name = "webdriver_server"
 version = "0.0.1"
 dependencies = [
+ "ipc-channel 0.1.0 (git+https://github.com/pcwalton/ipc-channel)",
  "log 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
  "png 0.1.0 (git+https://github.com/servo/rust-png)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
  "uuid 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "webdriver 0.2.0 (git+https://github.com/jgraham/webdriver-rust.git)",
@@ -1351,12 +1357,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 0.3.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicase 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
diff --git a/tests/wpt/metadata/url/url-constructor.html.ini b/tests/wpt/metadata/url/url-constructor.html.ini
index b8ff027163a..084c2509dc1 100644
--- a/tests/wpt/metadata/url/url-constructor.html.ini
+++ b/tests/wpt/metadata/url/url-constructor.html.ini
@@ -108,9 +108,6 @@
   [Parsing: <#> against <test:test?test>]
     expected: FAIL
 
-  [Parsing: <http://`{}:`{}@h/`{}?`{}> against <http://doesnotmatter/>]
-    expected: FAIL
-
   [Parsing: <i> against <sc:/pa/pa>]
     expected: FAIL