Steps to reproduce:
1. Open any site that uses appcache (e.g. <http://www.webkit.org/demos/calendar/Calendar.html>).
2. Reload if opening it for the first time.
3. Open Web Inspector, go to Resources->Application Cache.
Observe that the status is displayed as UNCACHED, which is incorrect. Notably, applicationCache.status value is 1, which stands for UNCACHED.
> applicationCache.status value is 1, which stands for UNCACHED.
Typo there, a value of 1 is IDLE.
I thought that adding a call to updateApplicationCacheStatus() in InspectorApplicationCacheAgent::setFrontend() would fix this, but that didn't work. Perhaps like the forntend is not ready for notifications by the time setFrontend() is called.
BTW, I'm wondering if online status bullet has the same problem - it starts with Online, and waits for notifications.
The status indicator has been hidden in bug 60799 to avoid confusing developers.
Fixed together with https://bugs.webkit.org/show_bug.cgi?id=60793.