Aqueduct not give response Flutter get request

Question

Hello I'm making an app which use http framework and send my server to get request. I'm using Aqueduct for backend service and it is working when I use POSTMAN to send 'get request' but when I use my app to send get request Aqueduct gives a message on console:

[INFO] aqueduct: OPTIONS /workers 8ms 403 {user-agent : Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/IP_ADRESS Safari/537.36\nconnection : keep-alive\naccept : */*\naccept-language : en-US,en;q=0.9\nsec-fetch-mode : cors\naccept-encoding : gzip, deflate, br\norigin : http://localhost:58095\nhost : localhost:8888\nsec-fetch-site : same-site\naccess-control-request-headers : authorization,companymail,content-type\naccess-control-request-method : GET\nreferer : http://localhost:58095/\n}   

When I use postman to send get request everything is fine and server gives response:

[INFO] aqueduct: GET /workers 92ms 200   

My Postman Headers:

companyMail:deneme1234
Content-Type:application/json
Authorization:Basic ZGVuZW1lMTIzNDpkZW5lbWUxMjM0

My flutter app headers:

final Map<String, String> headers = {"Content-Type": "application/json"};  
String basicAuth = 'Basic ' + base64Encode(utf8.encode('$mail:$password'));
  headers['authorization'] = basicAuth;
  headers['companyMail'] = companyMail;
return headers

My flutter app get request:

   final response = http.get(baseUrl+'workers',headers: await authHeader());

Answer 1

Finally I've found the solution :) It is about CorsPolicy. If you want to send special header with request, you must check your server acceptable headers. In Aqueduct you can edit your allowed request headers like that:

CORSPolicy.defaultPolicy.allowedRequestHeaders = ['company-mail','content-type','authorization'];