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conformance · v156
v156 · compression-dictionary-transport-updates — conformance probe
5 assertions drawn from the spec. Each is a single contract the spec text makes. Pass/fail reflects what this browser executed; blocked means the contract was not run because it needs user mediation, hardware, or another unavailable precondition. Open the page in Chrome stable / canary / Firefox / Safari to compare.
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pass
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fail
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blocked
5
total
| id | contract | kind | verdict | detail |
|---|---|---|---|---|
compression-dictionary-rel-recognized |
The browser recognises the "compression-dictionary" link relation keyword via relList.supports (the entry point for the whole feature). spec ↗ | script | … | |
link-rel-round-trips |
Setting link.rel = "compression-dictionary" round-trips and appears in the element's relList. spec ↗ | script | … | |
secure-context-required |
Compression Dictionary Transport requires a secure context; this page must be served securely for the feature to operate. spec ↗ | script | … | |
link-request-destination-is-compression-dictionary |
Chrome 156: fetching a <link rel="compression-dictionary"> sets the request destination to "compression-dictionary" (observable server-side as Sec-Fetch-Dest), rather than only marking the initiator. spec ↗ | manual | … | |
available-dictionary-negotiation |
A response advertising Use-As-Dictionary is stored, and a later matching request carries Available-Dictionary (SHA-256), Dictionary-ID, and dcb/dcz in Accept-Encoding. spec ↗ | manual | … |