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conformance · v135
v135 · enabling-web-applications-to-understand-bimodal-performance-timings — 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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| id | contract | kind | verdict | detail |
|---|---|---|---|---|
performance-navigation-entry-exists |
PerformanceNavigationTiming is exposed — the entry that now carries confidence info. spec ↗ | exists | … | |
confidence-prop-on-navigation-entry |
PerformanceNavigationTiming.prototype.confidence is exposed. spec ↗ | script | … | |
get-entries-by-type-navigation-works |
performance.getEntriesByType('navigation') returns an array (entries readable from script). spec ↗ | script | … | |
navigation-entry-instance-has-confidence |
An instance of PerformanceNavigationTiming exposes a confidence property (may be null). spec ↗ | script | … | |
performance-observer-supported |
PerformanceObserver is exposed — the recommended observation API for navigation timing. spec ↗ | exists | … |