Serve script that sends correct MIME types

Python...

bin/serve.py

@@ -0,0 +1,52 @@
+#!/usr/bin/env python
+
+import http.server
+import socketserver
+
+PORT = 8000
+
+message = f"""Starting ComfyBox.
+Be sure you've started ComfyUI already using this command:
+
+     python main.py --enable-cors-header
+
+Serving at http://localhost:{PORT}...
+"""
+
+# python -m http.server will sometimes send incorrect MIME types.
+# But most people have a system python already installed so this method is most convenient.
+# So here is a list of MIME types for the server to send back per file extension.
+# Hopefully this will cover everything.
+class HttpRequestHandler(http.server.SimpleHTTPRequestHandler):
+    extensions_map = {
+        '': 'application/octet-stream',
+        '.manifest': 'text/cache-manifest',
+        '.html': 'text/html',
+        '.png': 'image/png',
+        '.jpg': 'image/jpg',
+        '.jpeg': 'image/jpeg',
+        '.gif': 'image/gif',
+        '.svg': 'image/svg+xml',
+        '.css': 'text/css',
+        '.js': 'application/x-javascript',
+        '.wasm': 'application/wasm',
+        '.json': 'application/json',
+        '.xml': 'application/xml',
+        '.xml': 'application/xml',
+        '.pdf': 'application/pdf',
+        '.webp': 'image/webp',
+        '.avif': 'image/avif',
+        '.heic': 'image/heic',
+        '.heif': 'image/heif',
+        '.mp3': 'audio/mpeg',
+        '.mp4': 'video/mp4',
+        '.m4v': 'video/mp4'
+    }
+
+httpd = socketserver.TCPServer(("localhost", PORT), HttpRequestHandler)
+
+try:
+    print(message)
+    httpd.serve_forever()
+except KeyboardInterrupt:
+    pass