title: IE: How to handle cross-domain cookies?
body: <p>My main Site (<em>hostsite</em>) has an <code>IFRAME</code> with a registration site (<em>regsite</em>) hosted on a different domain.</p>
  
  <p>I want to host the registration on a different domain, because I feel storing the DB login information on <em>hostsite</em> is not safe as many people have access to the backend.</p>
  
  <p>All browsers accept the login session-cookie coming from <em>regsite</em> - Internet Explorer 8 does not. The only way to make IE accept this cookie is by adding both sites to "Trusted Sites" which is not what i want.</p>
  
  <p>Is there any way I can work around the cross-domain issue besides a local browser setting or is my only option to move the registration to <em>hostsite</em> (<code>curl</code> is not an option as it's not static HTML I'm displaying on the registration site, but PHP files)?</p>