I was looking today and yesterday into installing CiviVolunteer on our CiviCRM installation (civicrm 4.7.10 on Wordpress 4.7) and when I try to navigate to the volunteer opportunities page from an event info page I only get a blank page with the header set to CiviVolunteer but no form loading.
There are no Javascript errors and all Wordpress roles have AjAX API as well as Register as Volunteer permissions.
You can see for yourself on a test instance at: https://piraten.lu/crm/civicrm/?page=CiviCRM&q=civicrm%2Fevent%2Finfo&reset=1&id=2
What could be the issue?