Pop up mode links not working in Chrome

[simpsonw]

As noted in gots-discuss links added to pop-up mode tutorials don't appear to be working, even when the host is running HTTPS.

When clicked, the JavaScript console outputs:

Unsafe JavaScript attempt to initiate navigation for frame with URL 
'https://www.wikipedia.org/' from frame with URL
'http://guideside.palni.org/guide_on_the_side/tutorials/view_tutorial_only/76#'. 
The frame attempting navigation is neither same-origin with the target, 
nor is it the target's parent or opener.

We may need to rethink our approach as it appears Chrome may restrict this functionality further in the future.