acl page return ContentType:Document
When access to any ACL page the document type returned is Document instead of html,
which renders as plain text in Chrome - when SSL is enabled. (I don't know why)
I thought the cause is this line https://gitlab.com/mayan-edms/mayan-edms/blob/master/mayan/apps/acls/views.py#L124
Tried to comment it out but still the same result.