Im busy building a Phonegap app that connects with my Drupal rest server (Module: Services). My Drupal website (PHP) has the code: header(\'Access-Control-Allow-Origin: *\')
You are trying to set cookies for separate ajax call but this is not allowed by XMLHttpRequest specification. Instead, you can set a cookie to the current page and browser will put it in your ajax request if domain/path matches, i.e. by using jquery.cookie plugin:
$.cookie('the_cookie', 'the_value', { path: '/' });