Search images completely broken

[caiocmello]

See picture below (can't see any images to get any results)

[theorm]

@caiocmello this is expected. The images are not displayed when you are not logged in. We may need to change the placeholder image displayed (I appreciate that "not allowed in this context" does not make much sense to anyone except a group of Impresso team members. Need to ask @danieleguido to prepare a different image.