Right-click now offers "Empty cache and reload". Caches only - never
cookies or local storage: emptying a cache is what you do when a page is
serving something stale, and signing you out while doing it would be a
different and much less welcome feature. The reload waits for the removal
to finish, or it would refill from what was being thrown away.
Google Chat could play its own alert sound and still reach none of this,
because some apps never construct a Notification - they hand it to their
service worker registration instead. ServiceWorkerRegistration.prototype
.showNotification now routes to the same place. A worker calling it from
its own context is still out of reach; a page calling it is not.
Also shims the badge API, which is the precise form of an unread count -
a number an app states outright rather than one scraped from its title.
WKWebView does not implement it, so an app calling it was talking to
nobody. Chat's title carries no count at all, which is why no counter
ever appeared for it.
The background-apps probe now reports all three signals per app, so which
one an app actually uses is a reading rather than a guess.
Vincent
3aa9d9c3f7