App main page works, but other doesn't

The main page works, but when flask switches to result.html, it results in a 405 error on the browser. It works locally. Flask app, after submitting any result it doesn't work. https://gpa.nauseous.dev/ Here's the repo: https://github.com/Nauseouswave/GPA-Calculator
GitHub
GitHub - Nauseouswave/GPA-Calculator
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5 Replies
Percy
Percy4mo ago
Project ID: b8abc0df-62f0-49f0-a022-85591d0b6a42
Nauseous
Nauseous4mo ago
b8abc0df-62f0-49f0-a022-85591d0b6a42
Brody
Brody4mo ago
please make sure you are using https everywhere
Nauseous
Nauseous4mo ago
I connect to the URL, directly, the app code is simple. I switched to heroku to test it and it worked without changing anything.
Brody
Brody4mo ago
heroku does a lot of hand holding, on railway your code is ran as-is. please make sure you are using https everywhere