[Webkit-unassigned] [Bug 251592] New: Incorrect rendering of nested iframes with document.write

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Thu Feb 2 08:35:25 PST 2023


https://bugs.webkit.org/show_bug.cgi?id=251592

            Bug ID: 251592
           Summary: Incorrect rendering of nested iframes with
                    document.write
           Product: WebKit
           Version: Safari 16
          Hardware: All
                OS: iOS 16
            Status: NEW
          Severity: Critical
          Priority: P2
         Component: Frames
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: matthieu.wipliez at teads.com

The issue is that nested iframes with depth > 2 and not rendered correctly on Safari 16.3
This appears to be only broken on Safari 16.3, not previous or next versions (Safari Technology Preview seems unaffected).

Steps to reproduce :
Go to the URL: https://sample.teads.net/demo/bugs/safari-16.3-nested-iframe.html
Scroll down to the red rectangle
Observe that you see "hey there 0" and "hey there 1".

Expected: "hey there 0", "hey there 1", "hey there 2", "hey there 3".
Open the page on a previous version of Safari (16.1) or Safari Technology Preview, or Firefox, or Chrome, and witness the expected behavior.

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