Error 405 on Strapi request

Questions and Answers
10

Hi, I have a 405 error too when I try to execute an POST request initially did in the admin panel, in an other application.
The fetch request :

fetch("http://localhost:1337/collection-types/application::delivery.delivery", {
  "headers": {
    "accept": "application/json, text/plain, */*",
    "accept-language": "fr-FR,fr;q=0.9,en;q=0.8",
    "authorization": "Bearer blablabalabalfjidsfj",
    "content-type": "application/json;charset=UTF-8",
    "sec-fetch-dest": "empty",
    "sec-fetch-mode": "cors",
    "sec-fetch-site": "same-site"
  },
  "referrer": "http://localhost:3333/",
  "referrerPolicy": "strict-origin-when-cross-origin",
  "body": "{\"sellerLabel\":\"TEST\",\"price\":\"90\",\"description\":\"TEST\",\"expedition\":\"TEST\",\"carrier\":\"TEST\"}",
  "method": "POST",
  "mode": "cors",
  "credentials": "include"
});``` 

I do not undesrtand what is happening