Cannot play videos

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Posted on by Community Power Pla... Microsoft Employee

Hello everyone,

I can't play videos until I open the SharePoint library.
When I launch my application and try to play videos, nothing appears, but when I open the SharePoint library where my videos are saved and after a refresh of my application, it works.

Does anyone have any idea what the problem is?

Thanks in advance

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Building Power Apps

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Community Power Pla... Microsoft Employee on at

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Update:
I've seen that I don't have to launch the SharePoint library where the videos are saved but any SharePoint list in order to enter my credentials.
How can I do this if my application is operational and I don't want to quit it?

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els78 2 on at

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Hi there.
I was having the same problem and I think I have found the solution for desktop browsers.
My problem was that videos (not the new Stream) that were in a Sharepoint library would not play with Power Apps.
If you opened the link separately in a window, the video would play fine in the browser, but not in the Power App.

I was able to trace the problem back to CORS and Access-Control-Allow-Origin. To protect users, some browsers block scripts from accessing

a resource via cross-access to a website. So Power Apps tries to load the MP4, but gets a rejection from the server with a 401 Unauthorised Access code.

For example, I rarely had this problem with Chrome, but it happened all the time with Firefox. You can see this behaviour in a browser's developer console.

Solution:
You can add an exception in the Improved Protection against Activity Tracking setting, usually found in the Privacy settings.
Once https://apps.powerapps.com is added as an exception, videos can be played without any problems.

I hope this helps.

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