failed: Error during WebSocket handshake: Unexpected response code: 400

[lzz2017]

In my project, the front and back end separation is adopted, which is forwarded through nginx and zuul，then return error 400 . if only through nginx is ok.
the zuul properites is:
zuul:
host:
socket-timeout-millis: 30000
ignored-services: '*'
routes:
# 登录服务
auth_server:
serviceId: unified-login-center-server
path: /auth/**
custom-sensitive-headers: true
sensitiveHeaders: Cookie,Set-Cookie
# 权限控制中心
uacc:
serviceId: unified-authority-control-server-hlsc
path: /uacc/**
sensitiveHeaders: Cookie,Set-Cookie,Authorization
platform:
serviceId: hlsc-platform-server
path: /hlsc-platform/**
sensitiveHeaders: Cookie,Set-Cookie,Authorization
ws:
brokerages:
platform:
end-points: /webSocketServer
brokers: /topic
destination-prefixes: /app
server:
servlet:
context-path: /gwhlsc
and the websocket url is
var socket = new SockJS("http://192.168.5.66/gwhlsc/hlsc-platform/webSocketServer");

[oday-xiexin]

Madam, you may need to hide some sensitive information to prevent information leakage