Shadow on the html root is not displayed when a background is present 
https://bugs.webkit.org/show_bug.cgi?id=182925
Summary Shadow on the html root is not displayed when a background is present
Frédéric Wang (:fredw)
Reported 2018-02-19 06:35:34 PST
Created attachment 334159 [details] Testcase Support for root background was added in bug 176261. However, it seems that this does not take into account shadow on the root. See the attached testcase: The orange shadow is not visible when the yellow background is present on the root.
Attachments
Testcase (1.89 KB, text/html)
2018-02-19 06:35 PST, Frédéric Wang (:fredw) 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Frédéric Wang (:fredw)
Comment 1 2018-02-19 06:42:23 PST
Actually, this seems unrelated to Async frame scrolling, it already happens in Safari macOS / iOS when the setting is disabled. Gecko and Chromium render the box shadow even when the background is present.
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