1862903 - Registering a property should not affect cascade/parsing

Status: RESOLVED FIXED

(Core :: CSS Parsing and Computation, defect)

Description

[Frédéric Wang (:fredw)]

This is tested by https://wpt.fyi/results/css/css-properties-values-api/property-cascade.html

It used to fail because we don't implement computedStyleMap() but that was worked around by https://github.com/web-platform-tests/interop/issues/588

Now it seems to be failing because we don't respect what is described in https://drafts.css-houdini.org/css-properties-values-api-1/#the-registerproperty-function

"Registering a custom property must not affect the cascade in any way."

I'm not sure I really understand this now, but see also bug 1858362 which was forcing a re-cascade.

Comment 1

[zsun]

Attachment: Bug 1862903 - Registering a property should not affect cascade/parsing. r=zrhoffman,fredw

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/de171a9a6cf2
Registering a property should not affect cascade/parsing. r=zrhoffman,emilio

Comment 3

[Norisz Fay [:noriszfay]]

https://hg.mozilla.org/mozilla-central/rev/de171a9a6cf2

Comment 4

[Norisz Fay [:noriszfay]]

https://hg.mozilla.org/mozilla-central/rev/de171a9a6cf2