i'm having a CORS problem with file upload fuction in ionic 4, while uploading a dataForm

The code i'm having problem is below: when i send the code to the laravel api, which i've already have a CORS middleware, can someone help me with that?

sorry for may english lol

const customHeaders = new HttpHeaders({
  'Accepted-Encoding': 'application/json'
});

const customOptions = {
  headers: customHeaders,
  reportProgress: true,
};

const req = new HttpRequest('POST', `${this.baseUrl}/37`, formData, customOptions);
this.resetProgress();

return this.httpClient.request(req).pipe(
  map(event => {
    this.getStatusMessage(event);
  }),
  tap(message => console.log(message)),
  last()
);

}

via Chebli Mohamed