On initial install starting with 4.7 the CiviCRM Resource URL is set as [civicrm.root]/
On multiple hosts this causes resources to attempt to load with the foillowing url:
This function is adding the path to the files to the domain.
I have reproduced this locally and on multiple hosts.
Work around is to add
to civicrm.settings.php or manually override via Resorce URLs in the admin.