← back to v147 · prerendering-cross-origin-iframes
conformance · v147
v147 · prerendering-cross-origin-iframes — 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-exists |
document.prerendering property exists to indicate whether the page is being prerendered. spec ↗ | exists | … | |
document-prerendering-typeof |
document.prerendering property is of type boolean. spec ↗ | typeof | … | |
prerenderingchange-event-exists |
The onprerenderingchange event handler is supported on the document object. spec ↗ | script | … | |
speculationrules-script-supported |
The speculation rules script type is supported via HTMLScriptElement.supports('speculationrules'). spec ↗ | script | … | |
activation-start-exposed-on-navigation-timing |
PerformanceNavigationTiming prototype exposes activationStart, which records the time when prerendered page activated. spec ↗ | script | … | |
speculation-rules-element-creation |
A script element with type speculationrules can be created and added to document. spec ↗ | script | … |