NEW 207942
allow-top-navigation-by-user-activation doesn't work with XHR 
https://bugs.webkit.org/show_bug.cgi?id=207942
Summary allow-top-navigation-by-user-activation doesn't work with XHR
Mustaq Ahmed
Reported 2020-02-19 08:56:33 PST
It seems WebKit doesn't allow a subframe with the sandbox flag "allow-top-navigation-by-user-activation" to navigate the top frame away even with user activation. The problem seems to occur only with XHR. Async calls through setTimeout works fine. We (Chrome) have an internal client blocked by this behavior. Repro: http://mustaqahmed.github.io/web/top-nav-by-user-activation/
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Radar WebKit Bug Importer
Comment 1 2020-02-19 23:03:00 PST
<rdar://problem/59620231>
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