Share a youtube video with iFrame which shows CORS error

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Description

Similar issues #6721 . I am using the external_api.js. I have met trouble with Chrome on Mac OS Catalina. But I could not reproduce on Safari.

1. When the participant A shares a youtube video and clicks start, the participant B could not load. The whole screen would stuck on the youtube preview.

Console detail as below,

Failed to execute 'postMessage' on 'DOMWindow': The target origin provided ('https://www.youtube.com') does not match the recipient window's origin ('https://meet.jit.si').

1. I found that it might miss a parameter which called mute=1 when playing the youtube video.

HTML Code as below,

<iframe id="sharedVideoIFrame" frameborder="0" allowfullscreen="1" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" title="YouTube video player" width="100%" height="100%" src="https://www.youtube.com/embed/uDVTm1Xbc9k?origin=https%3A%2F%2Fmeet.jit.si&amp;fs=0&amp;autoplay=0&_mute=1_&amp;controls=1&amp;rel=0&amp;widget_referrer=http%3A%2F%2Fgrwth.app360.cn%2Fh5%2Fmeeting%2F60&amp;enablejsapi=1&amp;widgetid=1" style="width: 1782px; height: 821px; opacity: 1;"></iframe>

But I could not find if there is any connection between para. 1 and para. 2

Current behavior

the participant B could not load the sharing video

Expected Behavior

All participants could load the youtube video

Possible Solution

---

Steps to reproduce

2020-05-25 I tried some situations this morning. Use chrome raising a meeting and share a youtube video on Windows 10. Then I participate it with different browsers on Mac.

Chrome 83 - Passed Firefox 74 - Failed Safari 13 - Failed

Then I tried to raise a meeting and share a youtube video with different browsers on Mac. I found whatever browsers I share video on Mac, the screen would stuck on Windows. And I couldn’t click the play button. It looks so weird.

Environment details

Mac OS 10.15.1 Catalina Chrome 81.0.4044.138 Stable 64 Bit Firefox 74 64 Bit (Mac) Safari 13.0.1

[DanielLWinn]

Are you using the external API?

Yes. I use the external_api.js

[saghul]

Are you using the external API?