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conformance · v139

v139 · on-device-web-speech-api — 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://webaudio.github.io/web-speech-api/ chromestatus: #6090916291674112 generated 2026-06-03T11:43:18Z by codex
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id contract kind verdict detail
speech-recognition-exposed SpeechRecognition, or Chrome's webkitSpeechRecognition alias, is exposed on window. spec ↗ script
process-locally-attribute A SpeechRecognition instance exposes processLocally, the boolean that requests local speech recognition. spec ↗ script
availability-static-method SpeechRecognition.available() is a static method for checking local language-pack availability before starting recognition. spec ↗ script
install-static-method SpeechRecognition.install() is a static method for prompting installation of on-device language resources. spec ↗ script
lang-property-preserved SpeechRecognition still exposes the lang property so authors can target the language pack they checked or installed. spec ↗ script
result-event-type Recognition results are still delivered through SpeechRecognitionEvent and the existing result list model. spec ↗ script