← back to v138 · speculation-rules-mobile-moderate-eagerness-improvements

conformance · v138

v138 · speculation-rules-mobile-moderate-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.

browser: spec: https://wicg.github.io/nav-speculation/speculation-rules.html chromestatus: #5079361929347072 generated 2026-06-01T09:46:00Z by conformance-author-v1-subagent
0
pass
0
fail
0
blocked
6
total
id contract kind verdict detail
speculation-rules-supported HTMLScriptElement.supports('speculationrules') reports true. spec ↗ script
moderate-eagerness-rule-parses A speculation rule with eagerness: 'moderate' parses without throwing. spec ↗ script
conservative-still-supported conservative remains valid eagerness — backward compatibility (moderate is now distinct). spec ↗ script
eager-still-supported eager remains a valid eagerness level. spec ↗ script
intersection-observer-available IntersectionObserver is available — the spec hook the user agent uses to fire viewport-based moderate-eagerness triggers. spec ↗ exists
touch-points-readable navigator.maxTouchPoints is readable — mobile heuristic input for moderate eagerness behavior. typeof