295249 2025-06-30 17:22:10 -0700 add compression dictionary transport feature flag 2026-05-23 15:40:33 -0700 1 1 1 Unclassified WebKit Page Loading WebKit Nightly Build Unspecified Unspecified NEW https://bugzilla.mozilla.org/show_bug.cgi?id=1882979 https://github.com/WebKit/standards-positions/issues/160 https://issues.chromium.org/issues/40255884 https://datatracker.ietf.org/doc/rfc9842/ InRadar P2 Normal --- 315416 312148 1 juliah6169 webkit-unassigned beidson fred.wang pgriffis ryan webkit-bug-importer oldest_to_newest 2126883 0 juliah6169 2025-06-30 17:22:10 -0700 add compression dictionary transport feature flag 2126885 1 webkit-bug-importer 2025-06-30 17:22:19 -0700 <rdar://problem/154713504> 2199692 2 fred.wang 2026-04-13 05:24:52 -0700 MDN doc: https://developer.mozilla.org/docs/Web/HTTP/Guides/Compression_dictionary_transport Spec: https://datatracker.ietf.org/doc/rfc9842/ WPT tests: https://wpt.fyi/results/?label=experimental&label=master&aligned&q=feature%3Acompression-dictionary-transport testing/web-platform/tests/resource-timing/encoded-body-size-cached.https.html 2200127 3 fred.wang 2026-04-14 02:27:48 -0700 PR to the fetch spec: https://github.com/whatwg/fetch/pull/1854