NEW 214646
Stop margins from propagating into (cross-origin?) iframes 
https://bugs.webkit.org/show_bug.cgi?id=214646
Summary Stop margins from propagating into (cross-origin?) iframes
Attachments
Add attachment proposed patch, testcase, etc.
Radar WebKit Bug Importer
Comment 1 2020-07-22 11:35:48 PDT
<rdar://problem/65946853>
Darin Adler
Comment 2 2020-07-22 11:37:34 PDT
The only challenge, I suppose, is to do this without breaking legacy webpages. The code for this is in HTMLBodyElement::didFinishInsertingNode.
Ahmad Saleem
Comment 3 2023-07-13 16:58:09 PDT
Possible duplicate of bug 170336 and bug 4917?
Ahmad Saleem
Comment 4 2023-08-05 06:12:22 PDT
Adding WPTImpact tag because we have test for this: https://wpt.fyi/results/html/rendering/non-replaced-elements/the-page?label=master&label=experimental&aligned&q=the-page%2F Only Firefox seems to be passing them and when I remove "HTMLBodyElement::didFinishInsertingNode", we do start passing 'iframe' tests.
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