post menthod not working when send data from reactjs to django restful api

here is my post method code in react

const URL = `http://localhost:8000`
export default URL;

export function addRecruiterRegister(values,cb){
    const request=fetch(`${URL}/recruiterRegister`,{
        method:'POST',
        mode: "cors",
        headers: {
            'Accept': 'application/json',
            'Content-Type': 'application/json'
        },
        body: JSON.stringify(values)
        }).then(
          //  () => cb()
        )

        return {
            type:'ADD_RECRUITER',
            payload:'everything went fine'
    }
}

here is the code in django-python

class RecruiterRegisterList(generics.ListAPIView):

    queryset=RecruiterRegister.objects.all()
    serializer_class = RecruiterRegisterSerializer
    filter_backends = (DjangoFilterBackend,)
    filter_fields=('email','password')

    def post(self, request, format=None):
        serializer = RecruiterRegisterSerializer(data=request.data)
        if serializer.is_valid():
            serializer.save()
            return Response(serializer.data, status=status.HTTP_201_CREATED)
        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

    def delete(self, request, pk, format=None):
        recruiterRegisters = self.get_object()
        recruiterRegisters.delete()
        return Response(status=status.HTTP_204_NO_CONTENT)

error in the browser console:

Access to fetch at 'http://localhost:8000/recruiterRegister' from origin 'http://localhost:3000' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: Redirect is not allowed for a preflight request. :3000/#/forms/recruiter-register-form:1 Uncaught (in promise) TypeError: Failed to fetch

and in python console i am getting this when i click submit:

"OPTIONS /recruiterRegister HTTP/1.1" 301 0

very new to django-restframework and reactjs, please help!!