Script-scoped localStorage and IndexedDB?

[kulmegil]

It would be nice to have those two mechanism at script disposal - that is data shared across domains and being isolated from page content.

as a side note:
I had tried accessing localStorage from iframe loaded with GM_getResourceURL() - hoping that since gm special protocol produces same URI for a resource on each site it would work but at the end I was still accessing site ls :(

[arantius]

I think this would be nice. Last time I tried something like this, I failed. Lots of behavior baked deep into the browser that wanted to tie these tools to the content scope, and thus breaking them in script scope.

Not saying it's impossible, but it's difficult enough to be quite low on the priority list.

[jerone]

We have SQLite now; #1798

[arantius]

Yes, that per-script DB exists, but only the legacy get/set APIs are supported. It would be nice to expose a richer (SQL?) syntax directly to scripts. But like I said, earlier attempts at doing so were not successful.

[arantius]

Ah and this is largely a dupe of #1212 .

[bombledmonk]

It would certainly be of great help in several of my scripts to have even rudimentary SQL access for multiple table columns. (in the scale of 100MB of data currently in csv)

[arantius]

This is definitely a feature I'd like to have. If you have time to implement it, I'd happily review pull requests. It might be easier since #1798 took care of creating a separate storage DB per script, i.e. just create new table(s) there? I still don't know if it's possible/practical to safely export access to it into script space.