run.sh

#!/bin/bash

# This script starts a Python HTTP server with custom headers
# required for SharedArrayBuffer (COEP and COOP).

# Create a temporary Python server script
cat <<EOF > server.py
import http.server
import socketserver

PORT = 8000

class Handler(http.server.SimpleHTTPRequestHandler):
    def end_headers(self):
        # Add the required Cross-Origin-Embedder-Policy header
        self.send_header('Cross-Origin-Embedder-Policy', 'require-corp')
        # Add the required Cross-Origin-Opener-Policy header
        self.send_header('Cross-Origin-Opener-Policy', 'same-origin')
        super().end_headers() # Call the original end_headers to send other headers

# Start the server
with socketserver.TCPServer(("", PORT), Handler) as httpd:
    print(f"Serving real_webvm.html at http://localhost:{PORT}")
    httpd.serve_forever()
EOF

# Execute the Python server script
python server.py