1604636 - Rendering differences on Zalgo text

Status: NEW

(Core :: Layout: Text and Fonts, defect, P3)

Description

[Matthew Gaudet (he/him) [:mgaudet]]

Attachment: Nightly Rendering.

https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/1969471 has some Zalgo text it, and it renders quite a bit worse in nightly than in either Chrome or Safari.

(See Attachments)

Comment 1

[Matthew Gaudet (he/him) [:mgaudet]]

Attachment: Safari.png

Comment 2

[Matthew Gaudet (he/him) [:mgaudet]]

Attachment: Chrome.png

(I'd argue Chrome's got the clearest rendering; but as to correctness ¯_(ツ)_/¯)

Comment 3

[Mike Kaply [:mkaply]]

Attachment: Release rendering (Windows)

Comment 4

[Jonathan Kew [:jfkthame]]

I don't think there is any particularly "correct" rendering for junk like this. In any given browser, you're probably seeing a mixture of various fonts, depending on browser defaults and whatever fallback finds in the environment, as the main font being used for the content doesn't support many of the characters that are present. The result of throwing lots of combining marks in a mixture of fonts into the text can't really be expected to be consistent or predictable or "readable".

If the content were styled with a font that actually supported all the characters present, we could discuss whether it's being rendered correctly. As it is, it looks more like someone just threw handfuls of glyphs at the page, and they stuck wherever they happen to fall. Different browsers, or even the same browser on different systems, will likely have grabbed glyphs from different font buckets, so naturally the results will vary.