1body = b'''
2'use strict';
3
4onconnect = (event) => {
5  const port = event.ports[0];
6
7  port.onmessage = (event) => {
8    fetch(event.data, { mode: 'no-cors' })
9      .then(
10        () => port.postMessage('success'),
11        () => port.postMessage('failure')
12      );
13  };
14
15  port.postMessage('ready');
16};'''
17
18def main(request, response):
19    headers = [(b'Content-Type', b'text/javascript')]
20
21    for value in request.GET.get_list(b'value'):
22        headers.append((b'Cross-Origin-Embedder-Policy', value))
23
24    return (200, headers, body)
25