Busy indicator API

Anne van Kesteren annevk at annevk.nl
Sun Jul 5 15:11:58 UTC 2015

A while back there have been some requests from developers (seconded
by those working on GitHub) to have an API to indicate whether a site
is busy with one thing or another (e.g. networking).

They'd like to use this to avoid having to create their own UI. In
Firefox this could manifest itself by the spinner that replaces the
favicon when loading a tab.

Is there a reason we shouldn't expose a hook for this?


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