Configure ngrok's CORS headers : <p>I am running a local webserver, which runs an XHR request to an ngrok server, also  run from my PC. </p>

<p>I'm getting <code>XMLHttpRequest cannot load http://foo.ngrok.io/. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:3000' is therefore not allowed access</code>.</p>

<p>It appears the ngrok FAQ mentions CORS headers, but only in relation to basic auth - it doesn't mention how to set the headers so I could test my app in development.</p>

<p>How do I change ngrok's CORS options to allow loading requests from localhost?</p>
