Consider using FetchEvent to append access token to requests

[manifest]

FetchEvent is now shipped by all major browser vendors
https://jakearchibald.github.io/isserviceworkerready/#fetch-event
https://w3c.github.io/ServiceWorker/#fetchevent

It may be used to add "authorization" HTTP header with access token of the current user for specified list of URIs.

[rogaldh]

Still not sure we have to implement this. There is a lack of support by Safari IOS. Edge (<17) does not play well with FetchEvent also.

[manifest]

I don't think this library should target mobile because there are other ways to authenticate users on mobile. Edge (<17) means two latest versions already support FetchEvent.

[rogaldh]

We aimed to use that library at applications which run on mobile and desktop.