Draft
This page is not complete.
This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The cancel() method of the ReadableStreamBYOBReader interface cancels the stream, signaling a loss of interest in the stream by a consumer. The supplied reason argument will be given to the underlying source, which may or may not use it.
Note: If the reader is active, the cancel() method behaves the same as that for the associated stream (ReadableStream.cancel()).
Syntax
Promise<reason> readableStreamBYOBReaderInstance.cancel(reason);
Parameters
- reason
- A
DOMStringproviding a human-readable reason for the cancellation.
Return value
A Promise, which fulfills with the value given in the reason parameter.
Exceptions
- TypeError
- The source object is not a
ReadableStreamBYOBReader, or the stream has no owner.
Examples
TBD.
Specifications
| Specification | Status | Comment |
|---|---|---|
| Streams The definition of 'cancel()' in that specification. |
Living Standard | Initial definition. |
Browser compatibility
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
| Desktop | Mobile | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basic support | Chrome No support No | Edge No support No | Firefox No support No | IE No support No | Opera No support No | Safari No support No | WebView Android No support No | Chrome Android No support No | Edge Mobile No support No | Firefox Android No support No | Opera Android No support No | Safari iOS No support No | Samsung Internet Android ? |
Legend
- No support
- No support
- Compatibility unknown
- Compatibility unknown
- Experimental. Expect behavior to change in the future.
- Experimental. Expect behavior to change in the future.