Can Chrome delete my IndexedDB records when it runs out of free space?

[Juraj M.]

There has been some reports of users loosing data in their IndexedDB store when they accidentally run out of free space on their system drive.

Does Chrome clears the DB to free up space? Or is this a IO-kind of bug that breaks DB?

I know there are some quotas, but do they apply to extensions too?
https://developer.mozilla.org/en-US/docs/Web/API/Storage_API/Storage_quotas_and_eviction_criteria

[Jackie Han]

This doc says https://developer.chrome.com/docs/extensions/develop/concepts/storage-and-cookies#storage-persistence

(I'm not sure if the documentation is correct, it's hard to test.)

--
You received this message because you are subscribed to the Google Groups "Chromium Extensions" group.
To unsubscribe from this group and stop receiving emails from it, send an email to chromium-extens...@chromium.org.
To view this discussion on the web visit https://groups.google.com/a/chromium.org/d/msgid/chromium-extensions/e8b95f5b-509b-4eba-ab62-dfc98c6f2e56n%40chromium.org.

[Juraj M.]

Thank you Jackie!

I don't have the "unlimitedStorage" permission, so this one is on me :(

Adding new permission now...

BTW, if anyone's interested, the unlimitedStorage permission is not alerted to users:
https://extensionworkshop.com/documentation/develop/request-the-right-permissions/#Advised_permissions
https://developer.chrome.com/docs/extensions/develop/concepts/permission-warnings#permissions_with_warnings

[Jackie Han]

You're welcome.

[wOxxOm]

The documentation seems wrong about unlimitedStorage permission because https://crbug.com/1209236 is not yet fixed.

[Juraj M.]

Thanks wOxxOm!

So, it looks like I'm removing new unlimitedStorage permission again :) and adding star to that issue, hoping it will make a difference :)

[Jackie Han]

Oliver confirmed this two times, but not clearly.

https://groups.google.com/a/chromium.org/g/chromium-extensions/c/EfAXciu90yY/m/-Ng_PzQIAgAJ

https://groups.google.com/a/chromium.org/g/chromium-extensions/c/EfAXciu90yY/m/k9IdN77nAgAJ

[Juraj M.]

:D, thanks again!
I guess I'm adding the unlimitedStorage after all :).
It won't hurt so I don't see why not.

Happy holiday everyone!

[wOxxOm]

The source code links indeed confirm unlimitedStorage works and judging by git blame it did so since 2014 https://crrev.com/308192. My mistake was that I misinterpreted https://crbug.com/1209236 as an assertion but it was just a question.