RTCDataChannel: maxRetransmits property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since January 2020.

The read-only RTCDataChannel property maxRetransmits returns the maximum number of times the browser should try to retransmit a message before giving up, as set when the data channel was created, or null, which indicates that there is no maximum. This can only be set when the RTCDataChannel is created by calling RTCPeerConnection.createDataChannel(), using the maxRetransmits field in the specified options.

Value

The maximum number of times the browser will try to retransmit a message before giving up, or null if not set when RTCPeerConnection.createDataChannel() was called. The default is null.

Specifications

Specification
WebRTC: Real-Time Communication in Browsers
# dom-datachannel-maxretransmits

Browser compatibility

desktop mobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
maxRetransmits
Chrome – Full support
Chrome 30 (Release date: 2013-10-01)
footnote Full support
Edge – Full support
Edge 79 (Release date: 2020-01-15)
footnote Full support
Firefox – Full support
Firefox 62 (Release date: 2018-09-05)
footnote Full support
Opera – Full support
Opera 17 (Release date: 2013-10-08)
footnote Full support
Safari – Full support
Safari 11 (Release date: 2017-09-19)
footnote Full support
Chrome Android – Full support
Chrome Android 30 (Release date: 2013-10-02)
footnote Full support
Firefox for Android – Full support
Firefox for Android 62 (Release date: 2018-09-05)
footnote Full support
Opera Android – Full support
Opera Android 18 (Release date: 2013-11-20)
footnote Full support
Safari on iOS – Full support
Safari on iOS 11 (Release date: 2017-09-19)
footnote Full support
Samsung Internet – Full support
Samsung Internet 2 (Release date: 2014-10-17)
footnote Full support
WebView Android – Full support
WebView Android 4.4 (Release date: 2013-12-09)
footnote Full support
WebView on iOS – Full support
WebView on iOS 11 (Release date: 2017-09-19)
footnote Full support

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support

See also