[Webkit-unassigned] [Bug 247782] Very slow DOM rendering of large (plain text/json) URLs

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=247782

--- Comment #6 from zalan <zalan at apple.com> ---
(In reply to Vladimir Prelovac from comment #5)
> (In reply to zalan from comment #4)
> 
> > There's a visual indicator. It's a reddish glow (text-shadow) around the
> > inline content when enabled through Safari's Debug menu (Debug -> Layout
> > flags -> show legacy line layout coverage)
> 
> 
> This is interesting, thanks for sharing the tip.
> 
> I can notice that a fairly large txt file gets rendered enterly through
> modern path (and fast)
> 
> https://www.gutenberg.org/files/28054/28054-0.txt
> 
> But legacy path is not exclusive to .json, as for example this also renders
> through modern:
> 
> https://tools.learningcontainer.com/sample-json.json
> 
> Hope that helps a bit!
It does. Thank you for the examples! Will look into it shortly.

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