在我目前的设置中，当客户端从后端API请求任何东西时，浏览器控制台中会出现404错误状态：parsing_error，这是在localhost：3000/login登录尝试时发生的。我倾向于在nginx.conf中的位置块中解决问题，但在这一点上不确定，我已经尝试了许多不同的调整，但最终还是出现了其他错误。我在这个设置中缺少了什么？

nginx.conf

upstream loadbalancer {
    least_conn;
    server ws1:8081;
    server ws2:8082;
    server ws3:8083;
}

server {
        listen 80;
        server_name localhost;

        location / {
            root   /usr/share/nginx/html;
            index  index.html index.htm;
            try_files $uri $uri/ /index.html;
        }

        location /api/ {
            proxy_pass http://loadbalancer/;
            proxy_buffering on;
        }

}

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docker-compose.yml

services:
  ws1:
    image: bark-mate-be
    environment:
      - APPID=1111
      - APPPORT=8081
    networks:
      - loadbalancing
    ports:
      - "8081"
  ws2:
    image: bark-mate-be
    environment:
      - APPID=2222
      - APPPORT=8082
    ports:
      - "8082"
    networks:
      - loadbalancing
  ws3:
    image: bark-mate-be
    environment:
      - APPID=3333
      - APPPORT=8083
    ports:
      - "8083"
    networks:
      - loadbalancing
  barkmatefrontend:
    image: bark-mate-fe
    ports:
      - "3000:80"
    networks:
      - loadbalancing
    depends_on:
      - db
      - ws1
      - ws2
      - ws3
  db:
    volumes:
      - barkMate_db:/data/db
    image: mongo:latest
    ports:
      - "27017:27017"
volumes:
  barkMate_db:
networks:
  loadbalancing:

型

Dockerfile-client

FROM node:current-alpine as build
WORKDIR /app
COPY package*.json /app/
RUN npm install
RUN npm ci --production
COPY . .
RUN npm run build

FROM nginx:alpine-slim
COPY --from=build /app/build/ /usr/share/nginx/html
COPY --from=build /app/nginx/nginx.conf /etc/nginx/conf.d/default.conf

型

Dockerfile服务器

FROM node:16
RUN mkdir -p /app
WORKDIR /app
COPY package*.json ./
RUN npm install --silent
COPY . .
EXPOSE 8080
CMD ["node", "server.js"]

型