1167296 - recover if ServiceWorker script is missing from registration Cache

Status: RESOLVED FIXED

(Core :: DOM: Service Workers, defect)

Description

[Ben Kelly [:bkelly, not reviewing]]

It seems we don't handle the case well where there is a sw registration, but the sw script is missing.

For example:

1) go to a sw enabled page
2) reload
3) purge origin storage by clicking lock icon->More Information->Permissions->Clear Storage
4) open page in new tab

I would expect the page to load from the network in this case.

Instead it just sits on the about:newtab page forever.

Comment 1

[Ben Kelly [:bkelly, not reviewing]]

I'm marking this v1 because storage can be wiped by user action or automatically by our storage algorithms.  While a somewhat rare event, this seems like a bad UX to leave the user with.

Comment 2

[Andrew Overholt [:overholt]]

Andrea, can you take this?

Comment 3

[Andrea Marchesini [:baku]]

Attachment: patch 1 - RemoveAll in SWR + PBackground

Comment 4

[Andrea Marchesini [:baku]]

Attachment: patch 2 - Remove in SWR + PBackground

Comment 5

[Andrea Marchesini [:baku]]

Attachment: patch 3 - use of removeAndPropagate

Comment 6

[Andrea Marchesini [:baku]]

remote:   https://hg.mozilla.org/integration/mozilla-inbound/rev/b00b2c78aa4a
remote:   https://hg.mozilla.org/integration/mozilla-inbound/rev/e47c1128e79b
remote:   https://hg.mozilla.org/integration/mozilla-inbound/rev/6f19ae2a4c8a

Comment 7

[Carsten Book [:Tomcat]]

https://hg.mozilla.org/mozilla-central/rev/b00b2c78aa4a
https://hg.mozilla.org/mozilla-central/rev/e47c1128e79b
https://hg.mozilla.org/mozilla-central/rev/6f19ae2a4c8a