diff --git a/components/script/dom/document.rs b/components/script/dom/document.rs
index 983ee450d45..570c684965e 100644
--- a/components/script/dom/document.rs
+++ b/components/script/dom/document.rs
@@ -2622,7 +2622,7 @@ impl DocumentMethods for Document {
             "mouseevent" | "mouseevents" =>
                 Ok(Root::upcast(MouseEvent::new_uninitialized(&self.window))),
             "pagetransitionevent" =>
-                Ok(Root::upcast(PageTransitionEvent::new_uninitialized(self.window.upcast()))),
+                Ok(Root::upcast(PageTransitionEvent::new_uninitialized(&self.window))),
             "popstateevent" =>
                 Ok(Root::upcast(PopStateEvent::new_uninitialized(self.window.upcast()))),
             "progressevent" =>
diff --git a/components/script/dom/pagetransitionevent.rs b/components/script/dom/pagetransitionevent.rs
index b40f6c1ab39..e76a6444d4c 100644
--- a/components/script/dom/pagetransitionevent.rs
+++ b/components/script/dom/pagetransitionevent.rs
@@ -11,7 +11,7 @@ use dom::bindings::js::Root;
 use dom::bindings::reflector::reflect_dom_object;
 use dom::bindings::str::DOMString;
 use dom::event::Event;
-use dom::globalscope::GlobalScope;
+use dom::window::Window;
 use servo_atoms::Atom;
 use std::cell::Cell;
 
@@ -30,19 +30,19 @@ impl PageTransitionEvent {
         }
     }
 
-    pub fn new_uninitialized(global: &GlobalScope) -> Root<PageTransitionEvent> {
+    pub fn new_uninitialized(window: &Window) -> Root<PageTransitionEvent> {
         reflect_dom_object(box PageTransitionEvent::new_inherited(),
-                           global,
+                           window,
                            PageTransitionEventBinding::Wrap)
     }
 
-    pub fn new(global: &GlobalScope,
+    pub fn new(window: &Window,
                type_: Atom,
                bubbles: bool,
                cancelable: bool,
                persisted: bool)
                -> Root<PageTransitionEvent> {
-        let ev = PageTransitionEvent::new_uninitialized(global);
+        let ev = PageTransitionEvent::new_uninitialized(window);
         ev.persisted.set(persisted);
         {
             let event = ev.upcast::<Event>();
@@ -51,11 +51,11 @@ impl PageTransitionEvent {
         ev
     }
 
-    pub fn Constructor(global: &GlobalScope,
+    pub fn Constructor(window: &Window,
                        type_: DOMString,
                        init: &PageTransitionEventBinding::PageTransitionEventInit)
                        -> Fallible<Root<PageTransitionEvent>> {
-        Ok(PageTransitionEvent::new(global,
+        Ok(PageTransitionEvent::new(window,
                               Atom::from(type_),
                               init.parent.bubbles,
                               init.parent.cancelable,
diff --git a/components/script/dom/webidls/PageTransitionEvent.webidl b/components/script/dom/webidls/PageTransitionEvent.webidl
index 3f3ed0b797a..a23f3099bad 100644
--- a/components/script/dom/webidls/PageTransitionEvent.webidl
+++ b/components/script/dom/webidls/PageTransitionEvent.webidl
@@ -3,7 +3,8 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 // https://html.spec.whatwg.org/multipage/#the-pagetransitionevent-interface
-[Constructor(DOMString type, optional PageTransitionEventInit eventInitDict), Exposed=(Window,Worker)]
+[Constructor(DOMString type, optional PageTransitionEventInit eventInitDict),
+ Exposed=Window]
 interface PageTransitionEvent : Event {
   readonly attribute boolean persisted;
 };
diff --git a/tests/wpt/metadata/workers/semantics/interface-objects/002.worker.js.ini b/tests/wpt/metadata/workers/semantics/interface-objects/002.worker.js.ini
index 845577c4bfb..b97352bf940 100644
--- a/tests/wpt/metadata/workers/semantics/interface-objects/002.worker.js.ini
+++ b/tests/wpt/metadata/workers/semantics/interface-objects/002.worker.js.ini
@@ -6,6 +6,3 @@
   [The PopStateEvent interface object should not be exposed.]
     expected: FAIL
 
-  [The PageTransitionEvent interface object should not be exposed.]
-    expected: FAIL
-
diff --git a/tests/wpt/mozilla/tests/mozilla/interfaces.worker.js b/tests/wpt/mozilla/tests/mozilla/interfaces.worker.js
index b99d8badf8e..d7039e0bd66 100644
--- a/tests/wpt/mozilla/tests/mozilla/interfaces.worker.js
+++ b/tests/wpt/mozilla/tests/mozilla/interfaces.worker.js
@@ -37,7 +37,6 @@ test_interfaces([
   "MessageEvent",
   "MimeType",
   "MimeTypeArray",
-  "PageTransitionEvent",
   "Performance",
   "PerformanceTiming",
   "Plugin",