Bugzilla – Bug 817
Warn about features that are not widely implemented yet
Last modified: 2011-05-25 14:47:36 CEST
Sometimes people try to use some new feature and turn to the validator when it doesn't work in browsers. It would be helpful if the validator warned about features that are not widely implemented yet. Maybe you can outsource the task of knowing if something is widely implemented to caniuse.com. (I don't know if caniuse.com has a clean API for asking if a certain element, but maybe you could coordinate with @Fyrd.)
Alternatively rely on the status annotations in the spec: http://www.whatwg.org/specs/web-apps/current-work/status.cgi?action=get-all-annotations
https://bitbucket.org/validator/syntax/changeset/a7dee3eae4f0 https://bitbucket.org/validator/validator/changeset/1bb39f371fc4 See the first one of the changesets above to find out what's warned about. Please let me know if more warnings are needed.