HTTP/2 200
content-type: text/html
x-guploader-uploadid: AAwnv3IGSKKwvjdTpQ4dW6SEi85SsbVjcYJhRLX7to3gWJppAuB72pljFc_Xl9_JpaZFlcDH
cache-control: public, max-age=3600
expires: Sun, 12 Oct 2025 12:20:54 GMT
last-modified: Fri, 10 Oct 2025 01:05:59 GMT
etag: W/"be34aadcee33ea2920092dce9584262b"
x-goog-generation: 1760058358979294
x-goog-metageneration: 1
x-goog-stored-content-encoding: identity
x-goog-stored-content-length: 137642
x-goog-meta-goog-reserved-file-mtime: 1760056858
x-goog-hash: crc32c=bMAYew==, md5=vjSq3O4z6ikgCS3OlYQmKw==
x-goog-storage-class: STANDARD
accept-ranges: none
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
alt-svc: clear
referrer-policy: strict-origin-when-cross-origin
x-content-type-options: nosniff
strict-transport-security: max-age=63072000
content-security-policy: default-src 'self'; script-src 'report-sample' 'self' 'wasm-unsafe-eval' https://www.google-analytics.com/analytics.js https://www.googletagmanager.com/gtag/js assets.codepen.io production-assets.codepen.io https://js.stripe.com 'sha256-XNBp89FG76amD8BqrJzyflxOF9PaWPqPqvJfKZPCv7M=' 'sha256-YCNoU9DNiinACbd8n6UPyB/8vj0kXvhkOni9/06SuYw=' 'sha256-PZjP7OR6mBEtnvXIZfCZ5PuOlxoDF1LDZL8aj8c42rw='; script-src-elem 'report-sample' 'self' 'wasm-unsafe-eval' https://www.google-analytics.com/analytics.js https://www.googletagmanager.com/gtag/js assets.codepen.io production-assets.codepen.io https://js.stripe.com 'sha256-XNBp89FG76amD8BqrJzyflxOF9PaWPqPqvJfKZPCv7M=' 'sha256-YCNoU9DNiinACbd8n6UPyB/8vj0kXvhkOni9/06SuYw=' 'sha256-PZjP7OR6mBEtnvXIZfCZ5PuOlxoDF1LDZL8aj8c42rw='; style-src 'report-sample' 'self' 'unsafe-inline'; object-src 'none'; base-uri 'self'; connect-src 'self' developer.allizom.org bcd.developer.allizom.org bcd.developer.mozilla.org updates.developer.allizom.org updates.developer.mozilla.org https://*.google-analytics.com https://*.analytics.google.com https://*.googletagmanager.com https://incoming.telemetry.mozilla.org https://observatory-api.mdn.allizom.net https://observatory-api.mdn.mozilla.net https://api.github.com/search/issues stats.g.doubleclick.net https://api.stripe.com; font-src 'self'; frame-src 'self' interactive-examples.mdn.mozilla.net interactive-examples.mdn.allizom.net mdn.github.io live-samples.mdn.mozilla.net live-samples.mdn.allizom.net *.mdnplay.dev *.mdnyalp.dev *.play.test.mdn.allizom.net https://v2.scrimba.com https://scrimba.com jsfiddle.net www.youtube-nocookie.com codepen.io survey.alchemer.com https://js.stripe.com; img-src 'self' data: *.githubusercontent.com *.googleusercontent.com *.gravatar.com mozillausercontent.com firefoxusercontent.com profile.stage.mozaws.net profile.accounts.firefox.com developer.mozilla.org mdn.dev interactive-examples.mdn.mozilla.net interactive-examples.mdn.allizom.net wikipedia.org upload.wikimedia.org https://mdn.github.io/shared-assets/ https://mdn.dev/ https://*.google-analytics.com https://*.googletagmanager.com www.gstatic.com; manifest-src 'self'; media-src 'self' archive.org videos.cdn.mozilla.net https://mdn.github.io/shared-assets/; child-src 'self'; worker-src 'self';
x-frame-options: DENY
origin-trial: AxVILwizhbMjxFeHOn1P3R8niO1RJY/smaK4B4d1rLzc1gTaxtXMSaTi+FoigYgCw40uFRDwFcEAeqDR+vVLOW4AAABfeyJvcmlnaW4iOiJodHRwczovL2RldmVsb3Blci5tb3ppbGxhLm9yZyIsImZlYXR1cmUiOiJQcml2YXRlQXR0cmlidXRpb25WMiIsImV4cGlyeSI6MTc0MjA3OTYwMH0=
x-cloud-trace-context: f9d0ae3b2d9a8d9b2b1a046128503930
date: Sun, 12 Oct 2025 11:20:54 GMT
server: Google Frontend
via: 1.1 google
vary: Accept-Encoding
content-encoding: gzip
x-cache: miss
SpeechRecognitionErrorEvent: error property - Web APIs | MDN
An enumerated value representing the type of error. Possible values include:
aborted
Speech input was aborted in some manner, perhaps by some user-agent-specific
behavior like a button the user can press to cancel speech input.
audio-capture
Audio capture failed.
bad-grammar
Deprecated
Non-standard
There was an error in the speech recognition grammar or semantic tags, or the chosen
grammar format or semantic tag format was unsupported.
Note:
This error is no longer part of the Web Speech API specification; the concept of grammar has been removed from the Web Speech API. Related features remain in the specification and are still recognized by supporting browsers for backwards compatibility, but they have no effect on speech recognition services.
language-not-supported
The user agent does not support the language specified in the langSpeechRecognition
network
Network communication required for completing the recognition failed.
no-speech
No speech was detected.
not-allowed
The user agent disallowed any speech input from occurring for reasons of security,
privacy or user preference.
phrases-not-supported
The speech recognition model does not support phrasescontextual biasing .
service-not-allowed
The user agent disallowed the requested speech recognition service, either because
the user agent doesn't support it or because of reasons of security, privacy or user
preference. In this case it would allow another more suitable speech recognition
service to be used instead.
const recognition = new SpeechRecognition();
recognition.onerror = (event) => {
console.log(`Speech recognition error detected: ${event.error}`);
console.log(`Additional information: ${event.message}`);
};
