Meteor in restricted browsers for captive logins

I’m building a login page for a Wifi Management App, and meteor works just fine in almost all browsers, but in the browsers provided by the system in both iOS and OSX meteor simply not responds at all. Everything seems to work just fine, but the callbacks in the Meteor API functions are never called (neither in succes or error).

Sadly in this captive login pages i have not found a way to inspect the console or debbug the problem.

I need to help to make the functions work (or any clue you can give me) neither Meter.loginWithPassword() or Meteor.loginWithFacebook() seems to work propertly but i don’t understand the restrictions this types of browsers have.