PDF Embed API: Two Issues

1.  Issue 1.

"My site, altaalpina.org works in Chrome/Edge, but not Firefox. (both on Windows 11)  In Firefox I get :

This application domain (https://www.altaalpina.org) is not authorized to use the provided PDF Embed API Client ID

1. Issue 2

My current client ID is registered for `www.altaalpina.org`    But I would like it to also work for the subdomain altaalpina.org.    I created a second client ID registered for the domain `altaalpina.org` at https://www.altaalpina.org/pdfembedtest.html .  My expectation is that a client ID created for a subdomain will work in super-domains.  However it does not work for www.altalpina.org, and displays the same error as the above.   

Any guidance on the above is helpful.    The script code is pure vanilla, copied from samples.