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conformance · v132

v132 · document-isolation-policy — 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.

browser: spec: https://wicg.github.io/document-isolation-policy/ chromestatus: #5141940204208128 generated 2026-06-01T08:29:30Z by conformance-author-v1-subagent
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id contract kind verdict detail
cross-origin-isolated-property self.crossOriginIsolated is exposed — the boolean DIP can flip without requiring COOP/COEP headers. script
shared-array-buffer-gated SharedArrayBuffer is exposed in window scope; DIP unlocks it without COOP/COEP if the policy is set. spec ↗ script
performance-now-high-res-gated performance.now exists. High-resolution timing requires crossOriginIsolated; DIP is one way to obtain that. typeof
cross-origin-isolated-boolean crossOriginIsolated must be a boolean. typeof
document-policy-header-introspection The page does not expose a JS API to read the Document-Isolation-Policy header value directly; only the resulting crossOriginIsolated flag is observable. spec ↗ script
fetch-still-works-from-isolated-doc fetch() is still present — DIP enables isolation without breaking the network surface. typeof