from http.server import BaseHTTPRequestHandler, HTTPServer class SampleHTTPServerHandler(BaseHTTPRequestHandler): def do_GET(self): self.send_response(200) self.send_header('Content-type', 'text/html') self.end_headers() print(self.headers) received_guid = self.headers['Access-Control-Expose-Headers'] self.wfile.write(bytes(f"r: {received_guid}", "utf8")) with HTTPServer(('0.0.0.0', 8095), SampleHTTPServerHandler) as server: server.serve_forever()