::-moz-selection seems like a fairly popular feature. PublicWWW claims it's seen on a million sites: https://publicwww.com/websites/%22%3A%3A-moz-selection%22/
After this change, is it feasible to detect the usage of the prefixed pseudo-element so that existing code that uses ::-moz-selection would emit a helpful console warning? It would be nice to have a way to communicate to web developers that they can now remove the Gecko specific rules. On Mon, Mar 26, 2018 at 9:21 AM Emilio Cobos Álvarez <emi...@crisal.io> wrote: > Hi, > > In bug 509958 I intend to unprefix the ::-moz-selection pseudo-element. > > The situation here is not great wrt the spec saying what we do, or what > other implementations do for that matter, see [1]. > > However other engines have shipped this unprefixed for a long time with > the same semantics that we implement, and we're seeing webcompat > problems due to people forgetting to include ::-moz-selection in their > style sheets, see bug 1427680 or bug 1448670 for some examples. > > Given I don't think other engines have any incentive to implement what > the spec says (given it's slower, and has the chance of giving them > webcompat headache), and that we're compatible with them, I proposed to > adapt the spec to reality in that spec issue, and unprefix our > pseudo-element. > > Let me know if there's any concerns with this plan. Thanks! > > -- Emilio > > [1]: https://github.com/w3c/csswg-drafts/issues/2474 > _______________________________________________ > dev-platform mailing list > dev-platform@lists.mozilla.org > https://lists.mozilla.org/listinfo/dev-platform > _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
