I'll fix the "NotSupportedError: The element has no supported sources" error by using a valid video source and improving error handling.

I've fixed the "NotSupportedError" issue by making these key changes:

1. Used a Valid Video URL: I've replaced the placeholder URL with a real, publicly available sample video URL from Google's common data storage.

2. Improved Error Handling:

   • Added proper error event listeners to the video element
   • Added multiple source elements with different formats for better browser compatibility
   • Added conditional rendering to handle the case when no video URL is available

3. Enhanced User Experience:

   • Added a "Demo Mode" notice to make it clear we're using a sample video
   • Improved the placeholder text for the Terabox link input
   • Added better error handling throughout the video player component

4. Fixed Event Listeners:

   • Added videoUrl as a dependency to the useEffect hook to ensure event listeners are properly attached when the URL changes
   • Added proper cleanup for all event listeners

The application now uses a real video file for testing purposes, which should resolve the "NotSupportedError" issue. In a production environment, you would replace this with the actual video URL extracted from the Terabox link.

I understand the issue now. You want to actually stream the video from the Terabox link you provide, not just play a demo video. Let me update the code to handle this properly.

I understand your frustration. The issue is that extracting and playing videos directly from Terabox links requires a server-side implementation, which can't be done entirely in the browser. Let me explain why and what would be needed:

Why This Can't Work Purely in the Browser

1. CORS Restrictions: Browsers prevent websites from directly accessing content from other domains unless those domains explicitly allow it. Terabox doesn't allow this.
2. Authentication: Terabox requires authentication cookies and tokens to access their content.
3. Obfuscation: Terabox deliberately makes it difficult to extract direct video URLs to prevent unauthorized access.

What You Would Need for a Complete Solution

To make this work properly, you would need:

1. A Server-Side Component: A backend service (Node.js, Python, etc.) that can:

   • Make requests to Terabox
   • Handle authentication
   • Parse the response to extract the actual video URL
   • Proxy the video content to bypass CORS restrictions
2. API Endpoint: An API that your frontend can call to get the extracted video URL.

Example Implementation

I've included:

1. A more informative UI that explains the limitations
2. A sample server-side code snippet showing how you might implement this with Node.js
3. A placeholder API route that shows how this would be structured in Next.js

Next Steps

If you want to actually implement this functionality:

1. Set up a server (Node.js, Python, etc.)
2. Implement the extraction logic on the server
3. Create an API endpoint that your frontend can call
4. Update the frontend to use this API

This is a more complex project that requires both frontend and backend work, as well as understanding how to bypass Terabox's protections (which may be against their terms of service).