title: Why my Cloudflare Apps web hooks not working?
body: <p>I keep getting the following error message when implementing web hooks with cloudflare. </p>
  
  <blockquote>
    <p>There was an error communicating with Trebble.</p>
  </blockquote>
  
  <p>The dev console says:</p>
  
  <pre><code>raven.js:1 Hook failure 
      1. {type: "system", message: "unexpected end of JSON input", fields: Array(0)}
          1. fields:[]
          2. message:"unexpected end of JSON input"
          3. type:"system"
          4. __proto__:Object
  raven.js:1 Error(s) triggering preview hook 
      1. [{…}]
      console.(anonymous function)    @   raven.js:1
      (anonymous) @   installs.coffee:53
      processQueue    @   angular.js:13318
      (anonymous) @   angular.js:13334
      $eval   @   angular.js:14570
  </code></pre>