[Webkit-unassigned] [Bug 217722] [Webkit 14] : Caching undefined on subsequent instantiation

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=217722

Sean <sean at spanishdict.com> changed:

           What    |Removed                     |Added
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                 CC|                            |sean at spanishdict.com

--- Comment #12 from Sean <sean at spanishdict.com> ---
I'll add that we are seeing also this issue, outside of a Service Worker context. Just directly accessing window.caches results in an undefined value in some cases. Based on our logging, this seems to happen more frequently in a Mobile Safari Webview, but it seems that some users are encountering this on Mobile Safari 12, 13, and 14 not in a WebView. We even have some logs showing that window.caches is sometimes undefined in Desktop Safari as well.

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