When I open a tab to the calibre server in Firefox, I get the error message
"TypeError: can't redefine non-configurable property "userAgent"
Error at
http://127.0.0.1:8080/:1:321
Traceback (most recent call last):"
It keeps popping up intermittently when I x it out. It's very annoying.
How do I get rid of it? This just started happening after upgrading to calibre 3.41.2 64 bit.