If you encounter a "Playback Alert" error while sharing a video during a webinar, this indicates an issue with the video’s permissions or format compatibility. This article explains the possible causes and solutions to resolve the issue.
What Causes the Playback Alert?
Unsupported Video Format:
The video file is not in the supported format. Our platform supports only .mp4 files.
Permission Restrictions:
The video is hosted on a server or platform that blocks access due to permissions, such as CORS (Cross-Origin Resource Sharing) restrictions.
Videos must be publicly accessible without restrictions to ensure smooth playback inside the webinar.
What is a CORS Error?
CORS (Cross-Origin Resource Sharing) errors occur when a server restricts content from being accessed by other websites. For example:
If your video is hosted on a private server, external permissions or security policies may block the playback.
This often happens when the video is hosted on a service that requires login or specific permissions to view.
How to Resolve Playback Issues?
Check the Video Format:
Ensure the video file is in the .mp4 format, which is the only format supported by our platform.
Make the Video Publicly Accessible:
If the video is hosted on a third-party platform (e.g., Google Drive, Dropbox, or a private server), update the permissions to allow public access.
Ensure the video can be accessed via a public URL without requiring login credentials.
Enable CORS Permissions (If Applicable):
If the video is hosted on your own server, enable CORS to allow the video to be played in the webinar platform.
You may need assistance from your hosting provider or IT team to configure the server's CORS policy.
Example configuration for CORS headers on the server:
httpCopy codeAccess-Control-Allow-Origin: * Access-Control-Allow-Methods: GET Access-Control-Allow-Headers: Content-Type
Test the Video:
Before uploading or sharing the video, test it by opening the public URL in an incognito browser window. If the video plays without issues, it is ready for the webinar.
Still Facing Issues?
If you have tried the above steps and the issue persists, please contact our support team with the following details:
The URL of the video you are trying to share.
A screenshot of the error message.
Any additional context about where the video is hosted.
We’ll be happy to assist you further!