Getting Error 405 - Method Not Allowed. How Do I Fix This? or Why Am I Seeing Error 405 and How Can I

Ugh, error 405 is the worst. Had this happen when my backend route wasn’t properly set up to handle POST. Double-check your route definitions—maybe a typo or missing middleware?

If you’re using Express.js, make sure you’re not mixing app.get() and app.post() by accident.