405 ERROR fetching POST Api

i am new to cloudflare. I currently have an issue with my worker where i have a POST endpoint which recives user input data from the frontend. These data should be used to make a get request to an external api and then be displayed to the user via GET endpoint.

Unfortunately i get a 405 ERROR fetiching POST endpoint. The request looks like this in the console {“symbol”:“USDGOLD”,“spend”:50,“interval”:“1w”}, but I don’t get the response from my worker although it is set.

I also checked the endpoint in the worker setting the body manually, and i got the response i expect.

Prehaps someone knows what the issue could be?