Re: [mediacapture-fromelement] The sequence canvas.transferControlToOffscreen() followed by canvas.captureStream() does not appear to be specified (#84) from guest271314 via GitHub on 2020-01-14 (public-webrtc-logs@w3.org from January 2020)

From: guest271314 via GitHub <sysbot+gh@w3.org>
Date: Tue, 14 Jan 2020 18:30:18 +0000
To: public-webrtc-logs@w3.org
Message-ID: <issue_comment.created-574310311-1579026616-sysbot+gh@w3.org>

The result of this code is inconsistent at Chromium 81 and Nightly 74

```
const canvas = document.createElement("canvas");
const stream = canvas.captureStream();
```

Chromium does not throw an exception, Nightly does 

```
[Exception... "Component not initialized"  nsresult: "0xc1f30001 (NS_ERROR_NOT_INITIALIZED)"  location: "JS frame :: debugger eval code :: <TOP_LEVEL> :: line 2"  data: no]
```

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Received on Tuesday, 14 January 2020 18:30:19 UTC