Bug 1739530 Comment 8 Edit History
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Bisection: https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=e4c90fa447f5b0e062b72f74fe95fe23949fa180&tochange=d6fefbd370cdcb7400b151388d6972fb6a4aabf2 Suspect: bug 1578503 (only because the testcase has backdrop-filter in it. Other bugs with similar signatures had blobs as the reason)