It has been recently noted that Artstor images can sometimes not be viewed properly using our discovery tool, Summon. This is because in order to properly view Artstor images via a Summon search, popups must be allowed. Navigating directly to the Artstor database works normally and as expected, it is only when following summon links there is an issue.
To fix this problem you have to add the following URLs as popup exceptions in your browser settings: .artstor.org & .artstor.net
Below is how to add the exceptions to your browser:
Chrome:
Select the 3 parallel bars icon in top right of browser window
Choose settings > show advanced settings > Privacy > Content Settings > Popups > Manage exceptions > Add URLs
Firefox:
3 parallel bars icon top right of browser window
Options > Content > Exceptions > Add URLs
Internet Explorer
Tools (right of screen) > Internet options > Privacy > Popup blocker > Settings > Add URLs