[Webkit-unassigned] [Bug 204138] Using text-rendering:optimizeLegibility causes IME issues (e.g. Japanese input)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=204138

--- Comment #4 from Ryosuke Niwa <rniwa at webkit.org> ---
(In reply to Kari Matthews from comment #3)
> Apologies if the initial report wasn't clear enough. I've tried to clear
> things up here.
> 
> > On what macOS / iOS / iPadOS did you test this?
> 
> Macbook pro, Mojave v10.14.6
> 
> I'm adding Japanese in System Preferences > Language and Region, not adding
> a Japanese keyboard. This bug wouldn't occur with a Japanese keyboard.

Okay. Thanks for clarification.

> > Are you saying that as you type in Japanese, something that was previously visible go away? If so, what exactly is it?
> 
> The issue is with entering Japanese characters using an English keyboard.
> i.e. the character か (ka) is composed of the characters 'k' and 'a'. After
> inputting the second character ('a') the browser hangs for about 1.5 second
> before rendering か. As you can imagine this is a pretty bad experience for a
> user.

Ah, I see. Thanks for clarification.

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