This primarily affects PDFs of book chapters scanned in by the library, but some courses will use Equella for other types of content. Both Google Chrome and Mozilla Firefox are blocking access to content stored on Equella
Links from Blackboard to Equella are represented by this icon
Google Chrome
The workaround is to click the shield icon which appears to the right of your address bar, then click Load unsafe script
Mozilla Firefox
Click the shield icon in the toolbar