A wrapper around the official JMAP Proxy (https://proxy.jmap.io) that exposes a stubbed Authentication endpoint (well-known) and Event Source with CORS support.
$ npm install jmap-proxy
$ JMAP_PROXY_URL= npm start
Note: substitute JMAP_PROXY_URL for the full URL provided by https://proxy.jmap.io.
You can then use http://localhost:5000 in your JMAP client.
You can test the proxy by going to http://localhost:5000/test.
Can be found at http://jmap.io/spec.html.