i get error on patch only , other requests work fine

[YnsDev1]

I get an error when I send a patch request to my api (with loopback 4) , all the other request are working fine , i get error only on patch request .

error :

Access to XMLHttpRequest at 'url api' from origin 'url web app' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

any idea please !! this problem it was also on loopback 3 , so i think if migrate to loopback 4 i will solve the problem , but i get always the same error

here is cors configuration in index.ts 👍

  cors: {
    origin: '*',
    methods: 'GET,HEAD,PUT,PATCH,POST,DELETE',
    preflightContinue: false,
    optionsSuccessStatus: 200,
    maxAge: 86400,
    credentials: true,
  },

please help