The scenario:

1. Open WebDrawer using Google Chrome

2. find a record with a PDF document

3. View it (using the Trapeze viewer

4. Select the Document link

5. You will see this error

The Fix

To fix this:

1. open the file views\shared\menuButton.cshtml

2. look for this line:

   <a tabindex="-1" href="~/@menuItem.Value">@menuItem.Key</a>

3. Change it to this:

   <a tabindex="-1" target="_top" href="~/@menuItem.Value">@menuItem.Key</a>