title: jQuery mobile ajax requests writes "0" in body
body: <p>I have a very simple jQuery Mobile app that right now gives me a headache. 
  It is written in Ruby on Rails using the 'jquery_mobile_rails' gem.</p>
  
  <p>When I switch page with a normal link jQuery will put a "0" inside my body. If I force the link to not use ajax everything is good.</p>
  
  <p>There are no errors in my browsers javascript console, and right now I am totally blank as to what causes this error. It is my first jQuery Mobile app, so maybe this is just a very common mistake, but I have tried all sorts of things:
  - changing stuff in my views
  - using jQuery Mobile that I downloaded myself instead of the one from the gem</p>
  
  <p>Any hints are very much appreciated :)</p>