2054276 - [wpt-sync] Sync PR 61229 - [compression-dictionary] Add tentative tests to verify that link headers in subresources do not trigger dictionary fetches

Status: RESOLVED FIXED

(Testing :: web-platform-tests, task, P4)

Description

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Sync web-platform-tests PR 61229 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/61229
Details from upstream follow.

Frédéric Wang Nélar <[e-mail]> wrote:

[compression-dictionary] Add tentative tests to verify that link headers in subresources do not trigger dictionary fetches

Handling of link rel=compression-dictionary header from subresources is currently not defined in specifications. It is implemented in Chromium (with discussions to try to restrict it) but not in WebKit or Firefox. See https://github.com/whatwg/html/issues/11619#issuecomment-49381925637

Comment 1

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Pushed to try (stability) https://treeherder.mozilla.org/#/jobs?repo=try&revision=42ce0e00b85879ac5142fd55e65757a1bb3ee5d9

Comment 2

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

CI Results

Ran 9 Firefox configurations based on mozilla-central, and Firefox, Chrome, and Safari on GitHub CI

Total 16 tests and 16 subtests

Status Summary

Firefox

OK : 1[GitHub] 16[Gecko-android-em-14-x86_64-debug-geckoview, Gecko-android-em-14-x86_64-lite-opt-geckoview, Gecko-android-em-14-x86_64-opt-geckoview, Gecko-linux2404-64-debug, Gecko-linux2404-64-opt, Gecko-windows11-32-25h2-debug, Gecko-windows11-32-25h2-opt, Gecko-windows11-64-25h2-debug, Gecko-windows11-64-25h2-opt]
PASS: 4[GitHub] 48[Gecko-android-em-14-x86_64-debug-geckoview, Gecko-android-em-14-x86_64-lite-opt-geckoview, Gecko-android-em-14-x86_64-opt-geckoview, Gecko-linux2404-64-debug, Gecko-linux2404-64-opt, Gecko-windows11-32-25h2-debug, Gecko-windows11-32-25h2-opt, Gecko-windows11-64-25h2-debug, Gecko-windows11-64-25h2-opt]
FAIL: 8

Chrome

OK : 1
FAIL: 4

Safari

OK : 1
FAIL: 4

Links

Gecko CI (Treeherder)
GitHub PR Head
GitHub PR Base

Details

New Tests That Don't Pass

• /fetch/compression-dictionary/dictionary-decompression.tentative.https.html [wpt.fyi]
  • Decompression using Brotli fails when dictionary hash mismatches: FAIL
  • Decompression using Zstandard fails when dictionary hash mismatches: FAIL
• /fetch/compression-dictionary/dictionary-fetch-no-cors.tentative.https.html [wpt.fyi]
  • Opaque responses resulting from cross-origin redirects in no-cors mode do not register dictionary: FAIL
• /fetch/compression-dictionary/dictionary-fetch-timing-001.tentative.https.html [wpt.fyi]
  • Timing of compression dictionary fetches for <link> element and Link header.: FAIL
• /fetch/compression-dictionary/dictionary-match.tentative.https.html [wpt.fyi]
  • Dictionary with unknown match-dest is not used for fetch() API: FAIL
  • match-dest presence takes priority over longer match patterns: FAIL
• /fetch/compression-dictionary/dictionary-registration.tentative.https.html [wpt.fyi]
  • Dictionary with 1025 character dictionary ID is not registered: FAIL
  • Dictionary registration with dictionary ID (valid characters and backslash escaping): FAIL

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://github.com/mozilla-firefox/firefox/commit/d536a45a66ad
https://hg.mozilla.org/integration/autoland/rev/89e57c433c79
[wpt PR 61229] - [compression-dictionary] Add tentative tests to verify that link headers in subresources do not trigger dictionary fetches, a=testonly

Comment 4

[agoloman]

https://hg.mozilla.org/mozilla-central/rev/89e57c433c79