Intent to Ship: Durable Storage

David Grogan

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Sep 24, 2015, 9:14:39 PM9/24/15

to blin...@chromium.org

Contact emails

dgr...@chromium.org, jsbell@chromium.org, sligh...@google.com

Spec

https://storage.spec.whatwg.org/

TAG review issue: https://github.com/w3ctag/spec-reviews/issues/85

(but see Compatibility Risk below -- Anne from Mozilla is writing the spec)

Summary

Allow origins to opt out of the browser's storage-eviction logic that is run when the user's storage space is running low.

Link to “Intent to Implement” blink-dev discussion

https://groups.google.com/a/chromium.org/forum/?fromgroups#!searchin/blink-dev/durable$20storage/blink-dev/C-VcxpqInow/GiRFMFlsrRoJ

Is this feature supported on all six Blink platforms (Windows, Mac, Linux, Chrome OS, Android, and Android WebView)?

Not supported on Android WebView because it's only granted to bookmarked origins. (Eventually to be replaced by a general engagement score.)

Demo link

https://davidsgrogan.github.io/durable.html

Compatibility Risk

Low. Developers already have to support users who don't have this capability. If we decide to pull this from the platform the browser could act as if permission is never granted.

Discussions with Mozilla have been productive; Anne is writing the spec. Microsoft orally noted that tackling this issue was not a high priority for them.

OWP launch tracking bug

http://crbug.com/502373

Entry on the feature dashboard

https://www.chromestatus.com/features/5715811364765696

Discussion of the spec, down to whether the web needs this capability at all, should happen at https://github.com/whatwg/storage/issues.