diff --git a/layout/reftests/bugs/reftest-stylo.list b/layout/reftests/bugs/reftest-stylo.list
index c3da3ffee4a6..95fff2713d40 100644
--- a/layout/reftests/bugs/reftest-stylo.list
+++ b/layout/reftests/bugs/reftest-stylo.list
@@ -1983,10 +1983,10 @@ fails == 1316719-1a.html 1316719-1a.html
 fails == 1316719-1b.html 1316719-1b.html
 fails == 1316719-1c.html 1316719-1c.html
 
-fails HTTP == 652991-1a.html 652991-1a.html
-fails HTTP == 652991-1b.html 652991-1b.html
-fails HTTP == 652991-2.html 652991-2.html
-fails HTTP == 652991-3.html 652991-3.html
+HTTP == 652991-1a.html 652991-1a.html
+HTTP == 652991-1b.html 652991-1b.html
+HTTP == 652991-2.html 652991-2.html
+HTTP == 652991-3.html 652991-3.html
 fails HTTP == 652991-4.html 652991-4.html
 
 
diff --git a/layout/reftests/w3c-css/submitted/masking/reftest-stylo.list b/layout/reftests/w3c-css/submitted/masking/reftest-stylo.list
index 938a7143ef83..125501d3f4c9 100644
--- a/layout/reftests/w3c-css/submitted/masking/reftest-stylo.list
+++ b/layout/reftests/w3c-css/submitted/masking/reftest-stylo.list
@@ -102,7 +102,7 @@ fuzzy(64,370) == clip-path-borderBox-1a.html clip-path-borderBox-1a.html
 == clip-path-viewBox-1c.html clip-path-viewBox-1c.html
 == clip-path-geometryBox-2.html clip-path-geometryBox-2.html
 
-fails == clip-path-localRef-1.html clip-path-localRef-1.html
+== clip-path-localRef-1.html clip-path-localRef-1.html
 
 default-preferences
 
diff --git a/layout/style/ServoBindings.cpp b/layout/style/ServoBindings.cpp
index 3a10599b8eda..46f061c03b87 100644
--- a/layout/style/ServoBindings.cpp
+++ b/layout/style/ServoBindings.cpp
@@ -1509,6 +1509,7 @@ void
 Gecko_LoadStyleSheet(css::Loader* aLoader,
                      ServoStyleSheet* aParent,
                      RawServoImportRuleBorrowed aImportRule,
+                     nsIURI* aBaseURI,
                      const uint8_t* aURLString,
                      uint32_t aURLStringLength,
                      const uint8_t* aMediaString,
@@ -1518,6 +1519,7 @@ Gecko_LoadStyleSheet(css::Loader* aLoader,
   MOZ_ASSERT(aLoader, "Should've catched this before");
   MOZ_ASSERT(aParent, "Only used for @import, so parent should exist!");
   MOZ_ASSERT(aURLString, "Invalid URLs shouldn't be loaded!");
+  MOZ_ASSERT(aBaseURI, "Need a base URI");
   RefPtr<nsMediaList> media = new nsMediaList();
   if (aMediaStringLength) {
     MOZ_ASSERT(aMediaString);
@@ -1533,7 +1535,7 @@ Gecko_LoadStyleSheet(css::Loader* aLoader,
   nsDependentCSubstring urlSpec(reinterpret_cast<const char*>(aURLString),
                                 aURLStringLength);
   nsCOMPtr<nsIURI> uri;
-  nsresult rv = NS_NewURI(getter_AddRefs(uri), urlSpec);
+  nsresult rv = NS_NewURI(getter_AddRefs(uri), urlSpec, nullptr, aBaseURI);
 
   if (NS_FAILED(rv)) {
     // Servo and Gecko have different ideas of what a valid URL is, so we might
diff --git a/layout/style/ServoBindings.h b/layout/style/ServoBindings.h
index f2d6492bf09d..f9c4e559b73c 100644
--- a/layout/style/ServoBindings.h
+++ b/layout/style/ServoBindings.h
@@ -131,6 +131,7 @@ RawGeckoElementBorrowedOrNull Gecko_GetDocumentElement(RawGeckoDocumentBorrowed
 void Gecko_LoadStyleSheet(mozilla::css::Loader* loader,
                           mozilla::ServoStyleSheet* parent,
                           RawServoImportRuleBorrowed import_rule,
+                          nsIURI* base_uri,
                           const uint8_t* url_bytes,
                           uint32_t url_length,
                           const uint8_t* media_bytes,
diff --git a/layout/style/test/stylo-failures.md b/layout/style/test/stylo-failures.md
index 772f8cb291a2..9bf4bf3c9284 100644
--- a/layout/style/test/stylo-failures.md
+++ b/layout/style/test/stylo-failures.md
@@ -79,7 +79,7 @@ to mochitest command.
   * test_bug389464.html: also font-size computation [1]
   * test_html_attribute_computed_values.html: also list-style-type [8]
 * test_bug387615.html: servo/servo#15006 [1]
-* test_bug397427.html: @import issue bug 1331291 and CSSOM support of @import [3]
+* test_bug397427.html: @import issue bug 1331291 and CSSOM support of @import [1]
 * console support:
   * test_bug413958.html `monitorConsole` [3]
   * test_parser_diagnostics_unprintables.html [550]