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conformance · v143
v143 · speculation-rules-mobile-eager-eagerness-improvements — conformance probe
6 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.
0
pass
0
fail
0
blocked
6
total
| id | contract | kind | verdict | detail |
|---|---|---|---|---|
document-prerendering-attr |
document.prerendering exists — the page can introspect whether it was speculatively loaded. spec ↗ | script | … | |
speculationrules-script-type |
Browsers recognize the speculationrules script type (used to author eager rules). spec ↗ | script | … | |
speculation-rules-eager-parses |
A speculationrules script with eagerness: "eager" parses without throwing. spec ↗ | script | … | |
speculation-rules-all-eagerness-levels |
All four eagerness levels (immediate, eager, moderate, conservative) are accepted at parse time. spec ↗ | script | … | |
intersection-observer-available |
IntersectionObserver exists — `eager` mobile behavior relies on viewport-presence detection. spec ↗ | typeof | … | |
prerendering-change-event |
document supports the prerenderingchange event used by activated pages. spec ↗ | script | … |