Support URLs into records

[inexorabletash]

https://lists.w3.org/Archives/Public/public-webapps/2013JulSep/0081.html

Imported from https://www.w3.org/2008/webapps/wiki/IndexedDatabaseFeatures

[inexorabletash]

Now that we have Service Workers and soon - including Foreign Fetch - it's unclear we'd want this, rather than allowing an origin to define its own URL namespace backed by IDB queries.

[sicking]

I suspect that this would still be quite useful. If for no other reason than that Service Workers won't be installed on the first run.

I also know that one of the asks from the Google font people was to have a URL which would either quickly succeed, or quickly fail. Either would result in rendering using some font, which was the most important thing when rendering a page.

Another way to look at this is: Will Service Workers make people stop using the filesystem:// URL scheme in chrome?

[inexorabletash]

FWIW, hacky demo using SWs, to show what's involved

https://gist.github.com/inexorabletash/687e7c5914049536f5a3

[inexorabletash]

TPAC 2019 Web Apps Indexed DB triage notes:

This is probably better served by service workers and cache API, possibly with static routing to avoid running any user code.