What happens if waitUntil rejects?

[jakearchibald]

this.oninstall = function(event) {
  var core = new Cache(
    // urls
  );

  caches.set('core', core);
  event.waitUntil(core.ready());
};

If the cache fails to download & its ready promise rejects what happens?

Feels like the install would be abandoned & retried on the next page navigation to a url covered by the worker, after checking for updates to the controller.

What about onactivate? Same again - retry on next navigation after checking for updates?

[KenjiBaheux]

@jakearchibald
Does the latest spec capture the expected behavior? I'm thinking of the following sentence: "If any oninstall handler throws an exception, or if any lifetime extension via event.waitUntil() fails (via promise rejection), installation fails and activation is not carried out. "

Should this issue be closed? If not can you explain what's missing?

Background:
I'm going over the open issues, hoping to understand the potential impact against our current implementation.

[jakearchibald]

Yep, spec is correct. Thanks for going through these issues!

(note: activateEvent.waitUntil(Promise.reject) doesn't prevent activation)