[Webkit-unassigned] [Bug 201822] REGRESSION (STP): Erratic, then persistent page load failures

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=201822

--- Comment #8 from Chris Dumez <cdumez at apple.com> ---
(In reply to Chris Dumez from comment #7)
> (In reply to Jack Wellborn from comment #2)
> > Working on getting you the sysdiagnoses, but in the meantime it's worth
> > noting the bug is manifesting at this time of writing on developer.apple.com.
> > 
> > 
> > "Did not parse stylesheet at
> > 'https://developer.apple.com/assets/styles/global.dist.css' because non CSS
> > MIME types are not allowed in strict mode."
> > 
> > My guess was some sort of cache corruption bug, but clearing the cache does
> > not seem to help (though restarting does.)
> > 
> > I will follow up with the ID when I have it.
> 
> These CSS errors and integrity checks issues seem to indicate we got bad
> data either from the network or from a cache. Given that this seems to
> affect STP, I would suspect more a WebKit cache (memory cache or disk
> cache). Since it impacts apple.com, I do not think this is related to
> service workers.

@Alex Christensen, did Safari Technology Preview switch to a non-default persistent data store recently? If so, this could be related.

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