title: fb.login doesn't work in Chrome iOS
body: <p>I'm using js sdk and I thought it was only happen to me, surprisingly this happened to many popular sites. Doubt why this issue still exist, and I tried many methods but no luck.</p>
  
  <p><a href="http://build.smartthings.com/login/" rel="nofollow">http://build.smartthings.com/login/</a></p>
  
  <p>try to login with chrome ios, it return a blank page.</p>