I'm happy to see this moving forward, thanks for pushing it ahead!

That said, this seems like the kind of thing that's likely-enough to impact
enterprise that we should include a temporary opt-out to give ourselves
some wiggle room if it turns out that we're undercounting usage. Have y'all
already put something like that together?

-mike


On Fri, May 27, 2022 at 2:18 AM Ayu Ishii <a...@chromium.org> wrote:

>
> *Contact emails*a...@chromium.org, jsb...@chromium.org,
> ajayrahate...@google.com
>
>
> *Specification*https://www.w3.org/TR/webdatabase/
>
>
> *Summary*We intend to deprecate and remove usage of WebSQL in non-secure
> contexts. Deprecation is targeted for M105 and removal is targeted for M107.
>
>
> *Blink component*Blink>Storage>WebSQL
> <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EStorage%3EWebSQL>
>
>
> *Motivation*The Web SQL Database standard was first proposed in April
> 2009 and abandoned in November 2010. Gecko never implemented this feature
> and WebKit deprecated this feature in 2019
> <https://github.com/WebKit/WebKit/commit/761bce943c0696a6bb93116eb0576ed07dbfdc65>.
> The W3C encouraged those needing web databases to adopt Web Storage
> <https://www.w3.org/TR/webstorage/> or Indexed Database
> <https://www.w3.org/TR/IndexedDB/>.
>
> WebSQL has been deprecated and removed
> <https://groups.google.com/a/chromium.org/g/blink-dev/c/TM6YDx1Hh08> for
> third-party contexts in M97.
>
> We hope to entirely deprecate and remove WebSQL at some future point when
> usage is low enough.
>
>
> *TAG review*N/A
>
> Risks
> Based on usage measurements
> <https://chromestatus.com/metrics/feature/timeline/popularity/4073>
> rolled out in M97, 0.005% of page loads use WebSQL in a non-secure
> context.  Less than 0.01% of top sites have adopted this feature.
>
> Out of the 20 top sites listed for the month of April 2022, 11 of the
> sites use a feature detection library Modernizr 1.5
> <https://modernizr.com/news/modernizr-15>, on a version released in 2010.
> This would create a test database to check feature availability. I was
> unable to reproduce the creation of other WebSQL databases outside of the
> one created by Modernizr on these sites. 4 sites that seem to use an outdated
> private mode detection script <https://stackoverflow.com/q/48169810>
> which was intended for older versions of iOS. All the scripts I have found
> checked if window.openDatabase existed before usage, likely due to the lack
> of support in Gecko and WebKit.
>
> Interoperability and Compatibility
>
> Gecko: Never implemented
>
> WebKit: Deprecation shipped in iOS 13 and Safari 13
> <https://trac.webkit.org/changeset/277564/webkit>
>
> Web developers: No signals
>
>
> *Debuggability*N/A
>
> Is this feature fully tested by web-platform-tests
> <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>
> ?
> Not fully, one test
> <https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/web_tests/external/wpt/clear-site-data/support/test_utils.sub.js;l=136>
> checks the availability of the feature.
>
>
> *Tracking bug*https://crbug.com/1212492
>
> Link to related intents
> Intent to Deprecate and Remove: WebSQL in third-party contexts
> <https://groups.google.com/a/chromium.org/g/blink-dev/c/TM6YDx1Hh08>
>
>
> *Link to entry on the Chrome Platform Status*
> https://chromestatus.com/feature/5175124599767040
>
>
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