Can we see what you set for appUrl?
Ok
robloxranking2022.herokuapp.com/ does it need https:// lol?
Its not got https:// in does it need that?
Yes, it needs https.
Also edit the description of this post otherwise we’ll be removing it, make sure it’s ends with a slash too.
Ok.
Thats most probably why it don’t work I’ll yet you know and if it is the problem just delete this then.
@Alfie_Parker you’re yet to do this, make sure that you edit it!
It now works now, thank you!
Glad I could help, happy development! 
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