Re: [mediacapture-fromelement] The sequence canvas.transferControlToOffscreen() followed by canvas.captureStream() does not appear to be specified (#84)

From: guest271314 via GitHub <sysbot+gh@w3.org> Date: Tue, 14 Jan 2020 18:32:38 +0000 To: public-webrtc-logs@w3.org Message-ID: <issue_comment.created-574311203-1579026756-sysbot+gh@w3.org> · This archive was generated by hypermail 2.4.0 : Saturday, 6 May 2023 21:19:49 UTC

In fact this code throws an exception at Nightly

```
const canvas = document.createElement("canvas");
const offscreen = canvas.transferControlToOffscreen();
```
```
[Exception... "Method not implemented"  nsresult: "0x80004001 (NS_ERROR_NOT_IMPLEMENTED)"  location: "JS frame :: debugger eval code :: <TOP_LEVEL> :: line 2"  data: no]
```

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