431: Request Header Fields Too Large error - reactjs

Question

I'm creating a project that uses NestJs for the backend part and React for the frontend part. I would like to add users but there is an error that prevented it. When I make the request using Postman it works fine, but when I try it through the front, it sends a 431 error. I'm using redux/toolkit for sending requests. I'm using http://localhost:3001/. I tried to add a "start": "nest start -- --max-http-header-size=80000" for backend and frontend, but it didn't help me. Attached a request-response screen:
Frontend request
import { createApi, fetchBaseQuery } from "#reduxjs/toolkit/query/react";
import { CreateUserRequest } from "../dto/create-user-request.dto";
import { User } from "../models/User";
export const usersApi = createApi({
reducerPath: "usersApi",
baseQuery: fetchBaseQuery({
baseUrl: "/users",
}),
endpoints: (build) => ({
createUser: build.mutation<User, CreateUserRequest>({
query: (createUserRequest) => ({
url: "/",
method: "POST",
body: createUserRequest,
}),
}),
}),
});
export const { useCreateUserMutation } = usersApi;
backend main.ts
import { ValidationPipe } from '#nestjs/common';
import { NestFactory } from '#nestjs/core';
import { AppModule } from './app.module';
async function bootstrap() {
const app = await NestFactory.create(AppModule);
app.enableCors();
app.useGlobalPipes(new ValidationPipe())
await app.listen(3000);
}
bootstrap();
users.controller.ts
import { Body, Controller, Post } from '#nestjs/common';
import { CreateUserRequest } from './dto/request/create-user-request.dto';
import { UserResponse } from './dto/response/user-response.dto';
import { UsersService } from './users.service';
#Controller('users')
export class UsersController {
constructor(private readonly usersService: UsersService) { }
#Post()
async createUser(
#Body() createUserRequest: CreateUserRequest
): Promise<UserResponse> {
return this.usersService.createUser(createUserRequest)
}
}