1467309 - Make "--" an invalid property name for now

Status: RESOLVED FIXED

(Core :: CSS Parsing and Computation, enhancement, P3)

Description

[Xidorn Quan [:xidorn] UTC+10]

It is currently accepted as a custom property name, and the CSS WG just resolved to reserve it for future use, and thus it should be made invalid for now.

See https://github.com/w3c/csswg-drafts/issues/2692#issuecomment-395247646

Comment 1

[Emilio Cobos Álvarez (:emilio)]

Attachment: Bug 1467309 - Reserve -- as a custom property name. r=xidorn,#style

I think this should be fairly low risk, let's try to get it done sooner
rather than later.

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/49070d2a7e60
Reserve -- as a custom property name. r=xidorn

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/5879080dcadd
Fix test_css_supports_variables.html.

Comment 4

[Atila Butkovits]

https://hg.mozilla.org/mozilla-central/rev/49070d2a7e60
https://hg.mozilla.org/mozilla-central/rev/5879080dcadd

Comment 5

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Created web-platform-tests PR https://github.com/web-platform-tests/wpt/pull/29250 for changes under testing/web-platform/tests

Comment 6

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Upstream PR merged by moz-wptsync-bot