After hours of hitting my head on the keyboard if finally realized why my contact form wasn't submitting properly... I forgot to import jquery.

and all the other gazillion libraries related to that, Imma right fellow developers?
Dont forget if you are in a brand new freshly installed server to check if you have your CORS settings properly up specially when using on Nginx.
True story from a filthy casual dude that used to work mostly as SysAdmin for a while but decided to try that hip thing of that of "webdev"

Why would you need jQuery in a form?

@PrivateGER well I know I should just use vanilla but jquery makes it so easy to grab things from the page and make ajax requests