NEW 209737
Repaint issue in fixed header inside iframe 
https://bugs.webkit.org/show_bug.cgi?id=209737
Summary Repaint issue in fixed header inside iframe
Frédéric Wang (:fredw)
Reported 2020-03-30 07:01:02 PDT
+++ This bug was initially created as a clone of Bug #209486 +++ Repro page: https://output.jsbin.com/wakuqok/quiet It's a simple page that overflows on x and y. When scrolled, it shows a very visible flicker. See screen recording: https://drive.google.com/file/d/1g7IQE25VOS2B5Bhg760_Qx7k0Bnrrqbp/view?usp=sharing ---- Note: Justin said "I had paint flashing enabled when recording, if you're referring to the red flashes."
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