FF121 Custom State in Custom Elements #21283
Merged
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FF121 adds support for the Custom State Pseudo Class spec in https://bugzilla.mozilla.org/show_bug.cgi?id=1861466 behind a preference.
This updates
CustomStateSet
with support info and MDN + spec links. It also updatesElementInternals.states
with the preference info.There isn't any specific feature for the pseudo class itself - at least not obvious and not in the original updates to this #10976
Related docs work can be tracked in mdn/content#30339