No content in extension panel
I've followed in detail Andy Hall's CEP5 blog and the CC14 Extension SDK examples to build an extension, including setting PlayerDebugMode to 1. I also studied and tried out the sample extensions Github.
Still, while I can open the panel of my extension in InDesign CC (version 12.0) itself, it shows no content and I am unable to connect the debugger (Chrome gives me a ERR_CONNECTION_REFUSED). I don't know how to attach a zip to this thread, but you can download the example extension here.
What am I missing?
(P.S. Since this doesn't even work with Adobe's own sample extensions, I've filed an issue on Github as well.)