title: Facebook Connect for one application with multiple domains?
body: <p>I'm implementing a plug-in that's embeddable in different sites (a la Meebo, Wibiya), and I want to use Facebook Connect. The plug-in is supposed to be embeddable in sites with different domain names. Problem is, Facebook connect allows only one domain per application you register.</p>
  
  <p>The question is, how can I have multiple domains for a single Facebook application, assuming: </p>
  
  <ol>
  <li><p>When users "Allow" the application on one site, they won't have to "Allow" it on other sites as well. </p></li>
  <li><p>Preferably, after the initial log-in, users won't see a pop-up opening on every site they log-in to (i.e. - I'd rather not open a link to my domain and do the log-in process from there).</p></li>
  </ol>
  
  <p>Is there anyway of doing that?<br>
  If not, is my only option is to manage all the log-ins from a single domain and pass the cookies back to the original domains?<br>
  And if I pass the cookies between domains, how can I be sure that Facebook won't block this kind of behavior in the future?</p>
  
  <p>I'd appreciate any suggestions, though I'd prefer an official solution over hacks, if at all possible.</p>