On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 4 on 2010-01-25
In Chrome Android version 18 on 2012-06-27
In Deno version 1.14 on 2021-09-14 Note: The message parameter does not support cloning Blob values. The message parameter does not support cloning Blob values. The transfer parameter does not accept ArrayBuffer items. Passing an ArrayBuffer results in an error being thrown. The message parameter does not support cloning SharedArrayBuffer or Blob values. The transfer parameter is ignored. Data passed in the message parameter is serialized with JSON, not the structured clone algorithm. The transfer parameter is ignored.
In Edge version 12 on 2015-07-29
In Firefox version 3.5 on 2009-06-30
In Firefox for Android version 4 on 2011-03-29
In Internet Explorer version 10 on 2012-10-26
In Quest Browser version 5.0 on undefined
In Opera version 10.6 on 2010-07-01
In Opera Android version 11 on 2011-03-22
In Safari version 4 on 2009-06-08
In Safari on iOS version 5 on 2011-10-12
In Samsung Internet version 1.0 on 2013-04-27
In WebView Android version 4.4 on 2013-12-09
In WebView on iOS version 5 on 2011-10-12