Web Library Beta: Add by Identifier is blocked because of the Content Security Policy
The add by identifier functionality in the new web library beta looks really interesting and I tried it out without any success. There is always an NetworkError resp. Error failed to fetch appearing and in the browser console I see a warning and some calls are blocked because of the Content Security Policy. The behavior is the same for me in Firefox 69 (Windows, 64-Bit) and Chrome Version 78 (Windows, 64-Bit).