How to solve the problem that the PC side of Cloud On-Demand cannot play videos and the browser console reports cross-domain related errors?

To solve the problem where the PC side of Cloud On-Demand cannot play videos and the browser console reports cross-domain related errors, follow these steps:

1. Check Cross-Origin Resource Sharing (CORS) Configuration:
   The error is likely due to missing or incorrect CORS headers on the video server. Ensure the server hosting the videos includes the following headers in its responses:

   • Access-Control-Allow-Origin: * (or specify the allowed domain)
   • Access-Control-Allow-Methods: GET, OPTIONS
   • Access-Control-Allow-Headers: Content-Type

   Example: If the video is served from https://video.example.com, the server must respond with these headers for cross-domain requests to work.

2. Verify Browser Security Policies:
   Modern browsers block cross-origin requests if the server doesn’t explicitly allow them. Use the browser’s developer tools (Console tab) to identify the exact CORS error. If the error mentions No 'Access-Control-Allow-Origin' header, the server configuration needs updating.

3. Use a Proxy Server (if CORS cannot be modified):
   If you cannot modify the video server’s CORS settings, set up a proxy server to forward requests. The proxy can add the necessary headers to bypass CORS restrictions.

4. Check Cloud On-Demand Player Settings:
   Ensure the player on the PC side is correctly configured to handle cross-domain requests. Some players require additional settings to fetch resources from different origins.

5. Test with a Local Server (for debugging):
   If possible, test the video playback on a local server with proper CORS headers to confirm the issue is server-side.

For cloud-based video hosting, Tencent Cloud’s Media Services (e.g., Tencent Cloud VOD) provides built-in support for CORS and secure video delivery. It ensures seamless playback across domains while handling cross-origin requests efficiently.