On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 61 on 2017-09-05
In Chrome Android version 61 on 2017-09-05
In Edge version 79 on 2020-01-15
In Firefox version 75 on 2020-04-07 Note: Firefox does not prevent nonce exfiltration through content attributes.
In Firefox for Android version 79 on 2020-07-28 Note: Firefox for Android does not prevent nonce exfiltration through content attributes.
Not in Internet Explorer
In Quest Browser version 5.0 on 2018-07-01
In Opera version 48 on 2017-09-27
In Opera Android version 45 on 2018-02-15
In Safari version 15.5 on 2022-05-16 Note: Safari does not prevent nonce exfiltration through content attributes.
In Safari on iOS version 15.5 on 2022-05-16 Note: Safari on iOS does not prevent nonce exfiltration through content attributes.
In Samsung Internet version 8.0 on 2018-07-18
In WebView Android version 61 on 2017-09-05
In WebView on iOS version 15.5 on 2022-05-16 Note: WebView on iOS does not prevent nonce exfiltration through content attributes.