diff --git a/Cargo.lock b/Cargo.lock
index 0ce2361bb07..a0c28258043 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1945,9 +1945,9 @@ checksum = "2a2330da5de22e8a3cb63252ce2abb30116bf5265e89c0e01bc17015ce30a476"
 
 [[package]]
 name = "data-url"
-version = "0.3.1"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c297a1c74b71ae29df00c3e22dd9534821d60eb9af5a0192823fa2acea70c2a"
+checksum = "be1e0bca6c3637f992fc1cc7cbc52a78c1ef6db076dbf1059c4323d6a2048376"
 
 [[package]]
 name = "dbus"
diff --git a/components/script/dom/document.rs b/components/script/dom/document.rs
index c7bbe2d4465..058ea99bc8f 100644
--- a/components/script/dom/document.rs
+++ b/components/script/dom/document.rs
@@ -198,7 +198,7 @@ use crate::fetch::FetchCanceller;
 use crate::iframe_collection::IFrameCollection;
 use crate::image_animation::ImageAnimationManager;
 use crate::messaging::{CommonScriptMsg, MainThreadScriptMsg};
-use crate::mime::{APPLICATION, CHARSET, MimeExt};
+use crate::mime::{APPLICATION, CHARSET};
 use crate::network_listener::{NetworkListener, PreInvoke};
 use crate::realms::{AlreadyInRealm, InRealm, enter_realm};
 use crate::script_runtime::{CanGc, ScriptThreadEventCategory};
diff --git a/components/script/mime.rs b/components/script/mime.rs
index 8d45e84252a..74209579fc7 100644
--- a/components/script/mime.rs
+++ b/components/script/mime.rs
@@ -13,13 +13,6 @@ pub(crate) static XML: &str = "xml";
 
 /// Convenience methods to make the data_url Mime type more ergonomic.
 pub(crate) trait MimeExt {
-    /// Creates a new Mime from type and subtype, without any parameter.
-    fn new(type_: &str, subtype: &str) -> Self;
-
-    /// Checks that this Mime matches a given type and subtype, ignoring
-    /// parameters.
-    fn matches(&self, type_: &str, subtype: &str) -> bool;
-
     /// Checks that the subtype has a given suffix.
     /// Eg. image/svg+xml has the the xml suffix.
     fn has_suffix(&self, suffix: &str) -> bool;
@@ -32,18 +25,6 @@ pub(crate) trait MimeExt {
 }
 
 impl MimeExt for Mime {
-    fn new(type_: &str, subtype: &str) -> Self {
-        Mime {
-            type_: type_.into(),
-            subtype: subtype.into(),
-            parameters: vec![],
-        }
-    }
-
-    fn matches(&self, type_: &str, subtype: &str) -> bool {
-        self.type_ == type_ && self.subtype == subtype
-    }
-
     fn has_suffix(&self, suffix: &str) -> bool {
         self.subtype.ends_with(&format!("+{}", suffix))
     }
diff --git a/tests/wpt/meta/css/css-flexbox/flexbox-min-width-auto-006.html.ini b/tests/wpt/meta/css/css-flexbox/flexbox-min-width-auto-006.html.ini
deleted file mode 100644
index 12c787e0b25..00000000000
--- a/tests/wpt/meta/css/css-flexbox/flexbox-min-width-auto-006.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[flexbox-min-width-auto-006.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/css/css-grid/alignment/grid-item-aspect-ratio-stretch-1.html.ini b/tests/wpt/meta/css/css-grid/alignment/grid-item-aspect-ratio-stretch-1.html.ini
new file mode 100644
index 00000000000..11f47a434cf
--- /dev/null
+++ b/tests/wpt/meta/css/css-grid/alignment/grid-item-aspect-ratio-stretch-1.html.ini
@@ -0,0 +1,2 @@
+[grid-item-aspect-ratio-stretch-1.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-grid/alignment/grid-item-aspect-ratio-stretch-2.html.ini b/tests/wpt/meta/css/css-grid/alignment/grid-item-aspect-ratio-stretch-2.html.ini
new file mode 100644
index 00000000000..d0bd55478eb
--- /dev/null
+++ b/tests/wpt/meta/css/css-grid/alignment/grid-item-aspect-ratio-stretch-2.html.ini
@@ -0,0 +1,2 @@
+[grid-item-aspect-ratio-stretch-2.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-grid/alignment/grid-item-no-aspect-ratio-stretch-2.html.ini b/tests/wpt/meta/css/css-grid/alignment/grid-item-no-aspect-ratio-stretch-2.html.ini
new file mode 100644
index 00000000000..1866d16952b
--- /dev/null
+++ b/tests/wpt/meta/css/css-grid/alignment/grid-item-no-aspect-ratio-stretch-2.html.ini
@@ -0,0 +1,2 @@
+[grid-item-no-aspect-ratio-stretch-2.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-grid/alignment/grid-item-no-aspect-ratio-stretch-3.html.ini b/tests/wpt/meta/css/css-grid/alignment/grid-item-no-aspect-ratio-stretch-3.html.ini
new file mode 100644
index 00000000000..d48000be7d1
--- /dev/null
+++ b/tests/wpt/meta/css/css-grid/alignment/grid-item-no-aspect-ratio-stretch-3.html.ini
@@ -0,0 +1,2 @@
+[grid-item-no-aspect-ratio-stretch-3.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-grid/alignment/grid-item-no-aspect-ratio-stretch-4.html.ini b/tests/wpt/meta/css/css-grid/alignment/grid-item-no-aspect-ratio-stretch-4.html.ini
new file mode 100644
index 00000000000..2b551dbabca
--- /dev/null
+++ b/tests/wpt/meta/css/css-grid/alignment/grid-item-no-aspect-ratio-stretch-4.html.ini
@@ -0,0 +1,2 @@
+[grid-item-no-aspect-ratio-stretch-4.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-grid/alignment/grid-item-no-aspect-ratio-stretch-5.html.ini b/tests/wpt/meta/css/css-grid/alignment/grid-item-no-aspect-ratio-stretch-5.html.ini
new file mode 100644
index 00000000000..f71f9efe3c5
--- /dev/null
+++ b/tests/wpt/meta/css/css-grid/alignment/grid-item-no-aspect-ratio-stretch-5.html.ini
@@ -0,0 +1,2 @@
+[grid-item-no-aspect-ratio-stretch-5.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-grid/alignment/grid-item-no-aspect-ratio-stretch-6.html.ini b/tests/wpt/meta/css/css-grid/alignment/grid-item-no-aspect-ratio-stretch-6.html.ini
new file mode 100644
index 00000000000..9ee9cce78ad
--- /dev/null
+++ b/tests/wpt/meta/css/css-grid/alignment/grid-item-no-aspect-ratio-stretch-6.html.ini
@@ -0,0 +1,2 @@
+[grid-item-no-aspect-ratio-stretch-6.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/css/css-grid/grid-with-dynamic-img.html.ini b/tests/wpt/meta/css/css-grid/grid-with-dynamic-img.html.ini
deleted file mode 100644
index bd5f7c04c7c..00000000000
--- a/tests/wpt/meta/css/css-grid/grid-with-dynamic-img.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[grid-with-dynamic-img.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/css/css-position/position-absolute-replaced-intrinsic-size.tentative.html.ini b/tests/wpt/meta/css/css-position/position-absolute-replaced-intrinsic-size.tentative.html.ini
deleted file mode 100644
index fbcd9a83b13..00000000000
--- a/tests/wpt/meta/css/css-position/position-absolute-replaced-intrinsic-size.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[position-absolute-replaced-intrinsic-size.tentative.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/css/css-position/position-absolute-replaced-minmax.html.ini b/tests/wpt/meta/css/css-position/position-absolute-replaced-minmax.html.ini
index 2a1431da4a4..a8ea63dd7b3 100644
--- a/tests/wpt/meta/css/css-position/position-absolute-replaced-minmax.html.ini
+++ b/tests/wpt/meta/css/css-position/position-absolute-replaced-minmax.html.ini
@@ -44,14 +44,5 @@
   [minmax replaced IMG 37]
     expected: FAIL
 
-  [minmax replaced IMG 38]
-    expected: FAIL
-
   [minmax replaced IMG 39]
     expected: FAIL
-
-  [minmax replaced IMG 40]
-    expected: FAIL
-
-  [minmax replaced IMG 41]
-    expected: FAIL
diff --git a/tests/wpt/meta/css/css-position/position-absolute-replaced-no-intrinsic-size.tentative.html.ini b/tests/wpt/meta/css/css-position/position-absolute-replaced-no-intrinsic-size.tentative.html.ini
deleted file mode 100644
index 23af5ed6480..00000000000
--- a/tests/wpt/meta/css/css-position/position-absolute-replaced-no-intrinsic-size.tentative.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[position-absolute-replaced-no-intrinsic-size.tentative.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/fetch/security/dangling-markup/dangling-markup-mitigation-data-url.tentative.sub.html.ini b/tests/wpt/meta/fetch/security/dangling-markup/dangling-markup-mitigation-data-url.tentative.sub.html.ini
index 5af5dc2813d..7f912d09db0 100644
--- a/tests/wpt/meta/fetch/security/dangling-markup/dangling-markup-mitigation-data-url.tentative.sub.html.ini
+++ b/tests/wpt/meta/fetch/security/dangling-markup/dangling-markup-mitigation-data-url.tentative.sub.html.ini
@@ -1,7 +1,4 @@
 [dangling-markup-mitigation-data-url.tentative.sub.html]
-  [<img id="dangling" src="data:image/svg+xml;utf8,\\n      <svg width='1' height='1' xmlns='http://www.w3.org/2000/svg'>\\n        <rect width='100%' height='100%' fill='rebeccapurple'/>\\n        <rect x='10%' y='10%' width='80%' height='80%' fill='lightgreen'/>\\n      </svg>">]
-    expected: FAIL
-
   [<iframe id="dangling"\\n        src="data:text/html,\\n            <img\\n              onload='window.parent.postMessage(&quot;loaded&quot;, &quot;*&quot;);'\\n              onerror='window.parent.postMessage(&quot;error&quot;, &quot;*&quot;);'\\n              src='http://web-platform.test:8000/images/gr&#10;een-256x256.png?&lt;'>\\n        ">\\n     </iframe>]
     expected: FAIL