RTCError: sdpLineNumber property

Baseline 2026
Newly available

Since April 2026, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.

The RTCError interface's read-only property sdpLineNumber specifies the line number within the SDP at which a syntax error occurred while parsing it.

Value

An unsigned integer value indicating the line within the SDP at which the syntax error described by the RTCError object occurred. The lines are numbered starting with line 1.

This property is null unless the value of errorDetail is sdp-syntax-error.

Specifications

Specification
WebRTC: Real-Time Communication in Browsers
# dom-rtcerror-sdplinenumber

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
sdpLineNumber
Chrome – Full support
Chrome 74 (Release date: 2019-04-23)
footnote Full support
Edge – Full support
Edge 79 (Release date: 2020-01-15)
footnote Full support
Firefox – Full support
Firefox 150 (Release date: 2026-04-21)
footnote Full support
Opera – Full support
Opera 60 (Release date: 2019-04-09)
footnote Full support
Safari – Full support
Safari 15.4 (Release date: 2022-03-14)
footnote Full support
Chrome Android – Full support
Chrome Android 74 (Release date: 2019-04-24)
footnote Full support
Firefox for Android – Full support
Firefox for Android 150 (Release date: 2026-04-21)
footnote Full support
Opera Android – Full support
Opera Android 53 (Release date: 2019-07-11)
footnote Full support
Safari on iOS – Full support
Safari on iOS 15.4 (Release date: 2022-03-14)
footnote Full support
Samsung Internet – Full support
Samsung Internet 11 (Release date: 2019-12-05)
footnote Full support
WebView Android – Full support
WebView Android 74 (Release date: 2019-04-24)
footnote Full support
WebView on iOS – Full support
WebView on iOS 15.4 (Release date: 2022-03-14)
footnote Full support

Legend

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

Full support
Full support