1837635 - Investigate cssText serialization interop after recent Safari changes

Status: NEW

(Core :: DOM: CSS Object Model, task)

Description

[Thomas Wisniewski [:twisniewski]]

For Safari 17, WebKit has updated their cssText implementation in this bug to better-match what Chromium is doing and the spec. The web platform test situation now looks pretty complicated for these tests:

• https://wpt.fyi/results/css/cssom/cssom-getPropertyValue-common-checks.html
• https://wpt.fyi/results/css/cssom/shorthand-values.html
• https://wpt.fyi/results/css/css-backgrounds/parsing/border-shorthand.html
• https://wpt.fyi/results/css/css-masking/parsing/mask-valid.sub.html
• https://wpt.fyi/results/css/css-multicol/parsing/column-rule-shorthand.html
• https://wpt.fyi/results/css/cssom/shorthand-values.html

It may be good to make sure cssText serialization interop is solid, as we don't seem to have any platform counters for it.

Comment 1

[James Graham [:jgraham]]

AFAICT the only remaining Firefox failures in the listed tests are in https://wpt.fyi/results/css/css-masking/parsing/mask-valid.sub.html which is https://bugzilla.mozilla.org/show_bug.cgi?id=877294