| CARVIEW |
Select Language
HTTP/2 302
x-cloud-trace-context: cb99ef47ca9ee76b7f29534d37fe0884
location: /en-US/docs/Web/API/MediaStreamTrack/clone
via: 1.1 google, 1.1 varnish, 1.1 varnish, 1.1 varnish, 1.1 varnish
accept-ranges: bytes
cache-control: no-store
server: Google Frontend
content-type: text/plain; charset=utf-8
date: Sun, 28 Dec 2025 17:29:31 GMT
x-served-by: cache-bfi-kbfi7400026-BFI, cache-bfi-kbfi7400097-BFI, cache-sin-wsss1830089-SIN, cache-bom-vanm7210097-BOM
x-cache: MISS, MISS, MISS, MISS
x-cache-hits: 0, 0, 0, 0
x-timer: S1766942971.713546,VS0,VE300
vary: Accept
content-length: 64
HTTP/2 200
x-goog-stored-content-length: 141294
x-goog-metageneration: 1
referrer-policy: strict-origin-when-cross-origin
expires: Sun, 28 Dec 2025 18:29:31 GMT
x-goog-hash: crc32c=gm9hdQ==, md5=LRUqjs3PYw5ABs8A8ecxNw==
content-security-policy: default-src 'self'; script-src 'report-sample' 'self' 'wasm-unsafe-eval' https://www.google-analytics.com/analytics.js https://*.googletagmanager.com 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://*.googletagmanager.com 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' mdn.github.io *.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 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-goog-meta-goog-reserved-file-mtime: 1766882943
x-frame-options: DENY
x-goog-stored-content-encoding: identity
x-goog-generation: 1766884181126845
via: 1.1 google, 1.1 varnish, 1.1 varnish, 1.1 varnish, 1.1 varnish
server: Google Frontend
origin-trial: AxVILwizhbMjxFeHOn1P3R8niO1RJY/smaK4B4d1rLzc1gTaxtXMSaTi+FoigYgCw40uFRDwFcEAeqDR+vVLOW4AAABfeyJvcmlnaW4iOiJodHRwczovL2RldmVsb3Blci5tb3ppbGxhLm9yZyIsImZlYXR1cmUiOiJQcml2YXRlQXR0cmlidXRpb25WMiIsImV4cGlyeSI6MTc0MjA3OTYwMH0=
last-modified: Sun, 28 Dec 2025 01:09:41 GMT
x-goog-storage-class: STANDARD
x-cloud-trace-context: a472e770243cd1280302e3d0bd3e5222
x-content-type-options: nosniff
content-type: text/html
etag: "2d152a8ecdcf630e4006cf00f1e73137"
cache-control: public, max-age=3600
x-guploader-uploadid: AHVrFxOBYqeez1T0gBX6-GtcBJa9u6qOUO6Pk0nBK-5I_g1S54HE5xThyrCZnJrHr1OG74Lc
strict-transport-security: max-age=63072000
content-encoding: gzip
accept-ranges: bytes
age: 0
date: Sun, 28 Dec 2025 17:29:31 GMT
x-served-by: cache-bfi-kbfi7400039-BFI, cache-bfi-kbfi7400113-BFI, cache-sin-wsss1830091-SIN, cache-bom-vanm7210097-BOM
x-cache: MISS, MISS, MISS, MISS
x-cache-hits: 0, 0, 0, 0
x-timer: S1766942971.026840,VS0,VE317
vary: Accept-Encoding
content-length: 18719
MediaStreamTrack: clone() method - Web APIs | MDN
Toggle sidebar
>
MediaStreamTrack: clone() method
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2017.
The clone() method of the MediaStreamTrack
interface creates a duplicate of the MediaStreamTrack. This new
MediaStreamTrack object is identical except for its unique
id.
Syntax
js
clone()
Parameters
None.
Return value
A new MediaStreamTrack instance which is identical to the one
clone() was called, except for its new unique
id.
Specifications
| Specification |
|---|
| Media Capture and Streams> # dom-mediastreamtrack-clone> |