It's a little out of scope of what you can do on your end, but it looks like Treyarch's API is starting to require some sort of authorization.
Murmurs on Twitter seem to suggest that you need a cookie or authorization header to complete API calls now:
https://twitter.com/ErikPetersenDev/status/1101592944426053632
https://twitter.com/xSevithx/status/1101650891294285825
I'll keep my eyes out for whatever the solution to this problem is...
It's a little out of scope of what you can do on your end, but it looks like Treyarch's API is starting to require some sort of authorization.
Murmurs on Twitter seem to suggest that you need a cookie or authorization header to complete API calls now:
https://twitter.com/ErikPetersenDev/status/1101592944426053632
https://twitter.com/xSevithx/status/1101650891294285825
I'll keep my eyes out for whatever the solution to this problem is...