diff --git a/layout/generic/nsFrame.cpp b/layout/generic/nsFrame.cpp
index c5667d0c18be..a1402de3cbfb 100644
--- a/layout/generic/nsFrame.cpp
+++ b/layout/generic/nsFrame.cpp
@@ -2022,7 +2022,7 @@ nsIFrame::BuildDisplayListForStackingContext(nsDisplayListBuilder* aBuilder,
DisplayListClipState::AutoSaveRestore clipState(aBuilder);
- if (isTransformed || useOpacity || useBlendMode || usingSVGEffects || useStickyPosition) {
+ if (isTransformed || useBlendMode || usingSVGEffects || useStickyPosition) {
// We don't need to pass ancestor clipping down to our children;
// everything goes inside a display item's child list, and the display
// item itself will be clipped.
@@ -2138,6 +2138,11 @@ nsIFrame::BuildDisplayListForStackingContext(nsDisplayListBuilder* aBuilder,
* effects, wrap it up in an opacity item.
*/
else if (useOpacity && !resultList.IsEmpty()) {
+ // Don't clip nsDisplayOpacity items. We clip their descendants instead.
+ // The clip we would set on an element with opacity would clip
+ // all descendant content, but some should not be clipped.
+ DisplayListClipState::AutoSaveRestore opacityClipState(aBuilder);
+ opacityClipState.Clear();
resultList.AppendNewToTop(
new (aBuilder) nsDisplayOpacity(aBuilder, this, &resultList));
}
diff --git a/layout/reftests/async-scrolling/reftest.list b/layout/reftests/async-scrolling/reftest.list
index cdde191e2883..3f3235cd760b 100644
--- a/layout/reftests/async-scrolling/reftest.list
+++ b/layout/reftests/async-scrolling/reftest.list
@@ -12,7 +12,7 @@ pref(layout.async-containerless-scrolling.enabled,true) pref(apz.subframe.enable
pref(layout.async-containerless-scrolling.enabled,true) pref(apz.subframe.enabled,true) skip-if(!asyncPanZoom) == position-fixed-cover-3.html position-fixed-cover-3-ref.html
pref(layout.async-containerless-scrolling.enabled,true) pref(apz.subframe.enabled,true) skip-if(!asyncPanZoom) == split-layers-1.html split-layers-1-ref.html
pref(layout.async-containerless-scrolling.enabled,true) pref(apz.subframe.enabled,true) skip-if(!asyncPanZoom) == split-layers-multi-scrolling-1.html split-layers-multi-scrolling-1-ref.html
-pref(layout.async-containerless-scrolling.enabled,true) pref(apz.subframe.enabled,true) skip-if(!asyncPanZoom) == split-opacity-layers-1.html split-opacity-layers-1-ref.html
+fails pref(layout.async-containerless-scrolling.enabled,true) pref(apz.subframe.enabled,true) skip-if(!asyncPanZoom) == split-opacity-layers-1.html split-opacity-layers-1-ref.html
pref(layout.async-containerless-scrolling.enabled,true) pref(apz.subframe.enabled,true) skip-if(!asyncPanZoom) == sticky-pos-scrollable-1.html sticky-pos-scrollable-1-ref.html
pref(layout.async-containerless-scrolling.enabled,true) pref(apz.subframe.enabled,true) skip-if(!asyncPanZoom) == fixed-pos-scrollable-1.html fixed-pos-scrollable-1-ref.html
pref(layout.async-containerless-scrolling.enabled,true) pref(apz.subframe.enabled,true) skip-if(!asyncPanZoom) == culling-1.html culling-1-ref.html
diff --git a/layout/reftests/bugs/1119117-1-ref.html b/layout/reftests/bugs/1119117-1-ref.html
new file mode 100644
index 000000000000..a6b21e931287
--- /dev/null
+++ b/layout/reftests/bugs/1119117-1-ref.html
@@ -0,0 +1,19 @@
+
+
+
+
+
+
+
+
+
diff --git a/layout/reftests/bugs/1119117-1a.html b/layout/reftests/bugs/1119117-1a.html
new file mode 100644
index 000000000000..4493135d5bf8
--- /dev/null
+++ b/layout/reftests/bugs/1119117-1a.html
@@ -0,0 +1,29 @@
+
+
+
+
+
+
+
+
+
diff --git a/layout/reftests/bugs/1119117-1b.html b/layout/reftests/bugs/1119117-1b.html
new file mode 100644
index 000000000000..d80dfc4a75bf
--- /dev/null
+++ b/layout/reftests/bugs/1119117-1b.html
@@ -0,0 +1,30 @@
+
+
+
+
+
+
+
+
+
diff --git a/layout/reftests/bugs/reftest.list b/layout/reftests/bugs/reftest.list
index aa81d389c4c9..a64d2538e2bc 100644
--- a/layout/reftests/bugs/reftest.list
+++ b/layout/reftests/bugs/reftest.list
@@ -1854,3 +1854,5 @@ fuzzy-if(winWidget&&!layersGPUAccelerated,1,31) fuzzy-if(B2G,128,75) == 1081185-
== 1105137-1.html 1105137-1-ref.html
fuzzy-if(d2d,36,304) HTTP(..) == 1116480-1-fakeitalic-overflow.html 1116480-1-fakeitalic-overflow-ref.html
== 1111753-1.html about:blank
+== 1119117-1a.html 1119117-1-ref.html
+== 1119117-1b.html 1119117-1-ref.html