signinUrl with internet url error Access-Control-Allow-Origin

[essivision]

Hi

When I use $authProvider.signinUrl with external url (non-localhost) like this:

$authProvider.signinUrl = 'http://example.com/public/api/authenticate';

Show me this error in console:

XMLHttpRequest cannot load http://example.com/public/api/authenticate. 
Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost' is therefore not allowed access.