Contact emails

yhir...@chromium.org

Explainer

None

Specification

https://wicg.github.io/compression/

https://github.com/wicg/compression/pull/43 (spec PR)

https://chromium-review.googlesource.com/c/chromium/src/+/3586945 (impl and
tests)

Summary

Add a new compression format, "deflate-raw", to give web developers access
to the raw deflate stream without any headers or footers. This is needed,
for example, to read/write zip files.


Blink component

Blink>Network>StreamsAPI
<https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3ENetwork%3EStreamsAPI>

TAG review

This is subtle enough for a separate TAG review.

TAG review status

Not applicable

RisksInteroperability and Compatibility

This is a new addition and doesn’t change any existing behaviors.

Gecko: No signal

(See the bottom of https://github.com/mozilla/standards-positions/issues/207
)

WebKit: No signal

(See https://lists.webkit.org/pipermail/webkit-dev/2022-May/032213.html)

Web developers: Positive

https://github.com/wicg/compression/issues/25

Google Sheets <http://sheets.google.com>

Google sheets team uses zipping for conversion (client side) of google
sheet into different formats such as xlsx. Browser native
compression/decompression stream apis have much better performance than
using any js library for zipping.

With support for “deflate-raw” format, we are able to use
compression/decompression stream apis for compression of files during
zipping in a much simpler way compared to “gzip”, “deflate” format which
required workarounds on our side.


Other signals:

WebView application risks

None.


Debuggability

None

Is this feature fully tested by web-platform-tests
<https://chromium.googlesource.com/chromium/src/+/master/docs/testing/web_platform_tests.md>
?

Yes

Flag name

Requires code in //chrome?

False

Tracking bug

https://crbug.com/1271220

Estimated milestones

103

Anticipated spec changes

None


Link to entry on the Chrome Platform Status

https://chromestatus.com/feature/5172771293233152

Links to previous Intent discussions

Intent to prototype:
https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CABihn6GYcF5VsvfgEDpYL0rCvxQV9phxwFtJ-FxbTEbqPtJxbg%40mail.gmail.com
<https://groups.google.com/a/chromium.org/d/msgid/blink-dev/cabihn6gycf5vsvfgedpyl0rcvxqv9phxwftj-fxbtebqptj...@mail.gmail.com>


This intent message was generated by Chrome Platform Status
<https://chromestatus.com/>.

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