Which product are you using?
PDF.js Express Viewer
PDF.js Express Version
Detailed description of issue
A error appears in Chrome DevTools:
“A valid license key is required to use the view only build of PDF.js Express. Get your free license key at PDF.js Express (account required)”
I already have a valid free license for the domain on my intranet, this site does not have a valid internet domain. I think this is the problem.
Thanks a lot.