[csswg-drafts] Pull Request: [selectors-4] Canonicalize into extlang form prior to :lang() matching

frivoal has just submitted a new pull request for https://github.com/w3c/csswg-drafts:

== [selectors-4] Canonicalize into extlang form prior to :lang() matching ==
Fixes #4154

See https://github.com/w3c/csswg-drafts/pull/4212

Received on Saturday, 17 August 2019 09:12:13 UTC