← back to v132 · freezing-on-energy-saver
conformance · v132
v132 · freezing-on-energy-saver — 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 |
|---|---|---|---|---|
page-lifecycle-freeze-event-on-document |
document supports the freeze event (onfreeze IDL handler exists). spec ↗ | script | … | |
page-lifecycle-resume-event-on-document |
document supports the resume event (onresume IDL handler exists). spec ↗ | script | … | |
document-was-discarded-property |
document.wasDiscarded exists, indicating whether the previous instance was discarded. spec ↗ | script | … | |
visibility-state-property |
document.visibilityState is exposed — freezing is gated on visibility. | exists | … | |
visibility-change-event-handler |
document supports the visibilitychange event handler. | script | … | |
page-not-frozen-when-visible |
While the page is visible, document.visibilityState reads as 'visible' — freezing only applies once hidden and silent. spec ↗ | script | … |