Docviewer not working on admin


I am using omeka 1.5 and I installed Docviewer but when I go to view the pdf file attached to an item, I could not see it, all what I saw a link to the pdf file.

I guess the complete story is I am running this omeka behind https in dev server, does that make a difference? if yes, is there a way to change this to be able to try Docviewer on dev before move it to production!


I believe the Docs Viewer doesn't work on non-public items, since Google's servers have to be able to access and download the file to make the viewer function.

A dev server not accessible from the wider internet would pose the same problem.