diff --git a/gfx/layers/wr/ClipManager.cpp b/gfx/layers/wr/ClipManager.cpp
index f3871eb51b24b..28a54b237e5b5 100644
--- a/gfx/layers/wr/ClipManager.cpp
+++ b/gfx/layers/wr/ClipManager.cpp
@@ -63,7 +63,7 @@ void ClipManager::BeginList(const StackingContextHelper& aStackingContext) {
ItemClips clips(nullptr, nullptr, false);
if (!mItemClipStack.empty()) {
- clips = mItemClipStack.top();
+ clips.CopyOutputsFrom(mItemClipStack.top());
}
if (aStackingContext.ReferenceFrameId()) {
@@ -436,6 +436,11 @@ bool ClipManager::ItemClips::HasSameInputs(const ItemClips& aOther) {
mSeparateLeaf == aOther.mSeparateLeaf;
}
+void ClipManager::ItemClips::CopyOutputsFrom(const ItemClips& aOther) {
+ mScrollId = aOther.mScrollId;
+ mClipChainId = aOther.mClipChainId;
+}
+
wr::WrSpaceAndClipChain ClipManager::ItemClips::GetSpaceAndClipChain() const {
auto spaceAndClipChain = wr::RootScrollNodeWithChain();
spaceAndClipChain.space = mScrollId;
diff --git a/gfx/layers/wr/ClipManager.h b/gfx/layers/wr/ClipManager.h
index f82c5b5fe7f95..bb4e5436a24d9 100644
--- a/gfx/layers/wr/ClipManager.h
+++ b/gfx/layers/wr/ClipManager.h
@@ -133,6 +133,7 @@ class ClipManager {
void UpdateSeparateLeaf(wr::DisplayListBuilder& aBuilder,
int32_t aAppUnitsPerDevPixel);
bool HasSameInputs(const ItemClips& aOther);
+ void CopyOutputsFrom(const ItemClips& aOther);
wr::WrSpaceAndClipChain GetSpaceAndClipChain() const;
};
diff --git a/testing/web-platform/tests/css/filter-effects/fixed-pos-filter-clip-001.html b/testing/web-platform/tests/css/filter-effects/fixed-pos-filter-clip-001.html
deleted file mode 100644
index 3633872711f81..0000000000000
--- a/testing/web-platform/tests/css/filter-effects/fixed-pos-filter-clip-001.html
+++ /dev/null
@@ -1,13 +0,0 @@
-
-
-filter + fixed pos clipping
-
-
-
-
-
-
-
-
diff --git a/testing/web-platform/tests/css/filter-effects/fixed-pos-filter-clip-002-ref.html b/testing/web-platform/tests/css/filter-effects/fixed-pos-filter-clip-002-ref.html
deleted file mode 100644
index d281f2a852ed8..0000000000000
--- a/testing/web-platform/tests/css/filter-effects/fixed-pos-filter-clip-002-ref.html
+++ /dev/null
@@ -1,6 +0,0 @@
-
-
-CSS Test Reference
-
diff --git a/testing/web-platform/tests/css/filter-effects/fixed-pos-filter-clip-002.html b/testing/web-platform/tests/css/filter-effects/fixed-pos-filter-clip-002.html
deleted file mode 100644
index 196e4c91fc3b6..0000000000000
--- a/testing/web-platform/tests/css/filter-effects/fixed-pos-filter-clip-002.html
+++ /dev/null
@@ -1,21 +0,0 @@
-
-
-filter + fixed pos clipping
-
-
-
-
-
-
-