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Sign upRemove isolation conflict log in push_stacking_context #1955
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There are some cases that a stacking context can contain multiple child stacking contexts with blend mode:
In the test in[1], we have two background-images applied to blend mode in the same item.
If my understanding is correct, this error log in push_stacking_context assume a stacking context can only have one child stacking context which has blend mode.
Perhaps we should remove this assumption?
[1] https://searchfox.org/mozilla-central/source/layout/reftests/css-blending/background-blending-gradient-gradient.html
[2]
webrender/webrender/src/frame_builder.rs
Line 369 in 4b8493d