title: Load html file in typescript
body: <p>I have an html file in the same directory of the typescript file. IO have to load it and return it from the function.</p>
  
  <pre><code>public ...(... ) :  angular.IHttpPromise&lt;string&gt; {
     ...
     return $http({
              method: 'GET',
              url: 'help.html'
     });
  </code></pre>
  
  <p>Error: NetworkError: 404 Not Found - <a href="http://localhost:3000/help.html" rel="nofollow">http://localhost:3000/help.html</a></p>