[Webkit-unassigned] [Bug 214646] New: Stop margins from propagating into (cross-origin?) iframes

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=214646

            Bug ID: 214646
           Summary: Stop margins from propagating into (cross-origin?)
                    iframes
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: simon.fraser at apple.com

We should cut this off:
https://research.securitum.com/marginwidth-marginheight-the-unexpected-cross-origin-communication-channel/

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