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conformance · v139

v139 · re-sizing-tcp-connection-pool — conformance probe

10 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://chromestatus.com/feature/5182293874049024 chromestatus: #5182293874049024 generated 2026-06-05T09:48:46Z by codex-conformance-repair
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pass
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fail
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blocked
10
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id contract kind verdict detail
fetch-exposed fetch() remains exposed; the TCP pool experiment is below the Fetch API surface. typeof
xhr-exposed XMLHttpRequest remains exposed for legacy clients sharing the same browser socket pools. typeof
websocket-exposed WebSocket is exposed; ChromeStatus says normal and WebSocket global socket limits are both studied. typeof
performance-resource-timing-supported PerformanceResourceTiming is exposed for observing connection timing and reuse signals. typeof
resource-timing-has-connect-fields PerformanceResourceTiming exposes connectStart and connectEnd timing fields. spec ↗ script
same-origin-fetch-produces-resource-entry A same-origin fetch produces a resource timing entry with numeric duration and connect fields. spec ↗ script
performance-get-entries-by-type performance.getEntriesByType is available for reading resource timing entries. typeof
no-global-setmaxsockets-api The browser does not expose a JS-visible setMaxSockets() TCP pool-size setter. script
no-navigator-connection-pool-api navigator does not expose a connectionPool object for reading or changing the global TCP socket pool. script
navigator-connection-effective-type-when-present When Network Information is present, effectiveType remains a connection signal independent of pool sizing. script