It is initially implemented in bug 1479935 but only exposed to WebExtensions. However, there is no such restriction in the spec, so supposedly it should be exposed to the web content, especially that Chrome has already does so. I don't see any bug tracking that, so created one. Please dup if there is already any.
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It is initially implemented in bug 1479935 but only exposed to WebExtensions. However, there is no such restriction in the spec, so supposedly it should be exposed to the web content, especially that Chrome has already been doing so. I don't see any bug tracking that, so created one. Please dup if there is already any.