title: Fehler (error) 6 - the requested item could not be loaded
body: <p>Currently I'm developing android application that needs to connect itself to REST API. It is crucial for my app to access API whenever connection is possible (mobile data/wifi).</p>
  <p>But when testing my app something extremely weird happened. Application works as expected almost all the time, but when on VipMobile operator (Austria telekom group) I cannot connect to API.</p>
  <p>At first I didn't get it, error was too unreadable. It says</p>
  <pre><code>j u fehler6 the requested item could not be loaded &amp; wrong mime type  
  </code></pre>
  <p>There are a lot of unprintable chars in that message too. When i figured out that it is operator fault i tried to copy link to my API and got this. <img src="https://i.stack.imgur.com/R5qQn.png" alt="Screenshot 1" /></p>
  <p>What could that possibly be? Can anyone point me in any direction, I cannot publish application as long as there are those ridickulous errors.</p>