流星 WebSocket 与 nginx 握手错误 400 [英] Meteor WebSocket handshake error 400 with nginx

问题描述

我设法在我的基础设施(Webfactions)上部署了meteor.该应用程序似乎工作正常，但当我的应用程序启动时，我在浏览器控制台中收到以下错误:

I managed to deploy meteor on my infrastructure (Webfactions). The application seems to work fine but I get the following error in the browser console when my application starts:

WebSocket 连接到ws://.../websocket"失败:WebSocket 握手期间出错:意外响应代码:400

推荐答案

WebSockets 速度很快，您不必(也不应该)禁用它们.

WebSockets are fast and you don't have to (and shouldn't) disable them.

这个错误的真正原因是Webfactions使用了nginx，nginx配置不当.以下是如何通过设置 proxy_set_header 来正确配置 nginx 以代理 WebSocket 请求升级 $http_upgrade; 和 proxy_set_header 连接 $connection_upgrade;:

The real cause of this error is that Webfactions uses nginx, and nginx was improperly configured. Here's how to correctly configure nginx to proxy WebSocket requests, by setting proxy_set_header Upgrade $http_upgrade; and proxy_set_header Connection $connection_upgrade;:

# we're in the http context here
map $http_upgrade $connection_upgrade {
  default upgrade;
  ''      close;
}

# the Meteor / Node.js app server
server {
  server_name yourdomain.com;

  access_log /etc/nginx/logs/yourapp.access;
  error_log /etc/nginx/logs/yourapp.error error;

  location / {
    proxy_pass http://localhost:3000;

    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $host;  # pass the host header - http://wiki.nginx.org/HttpProxyModule#proxy_pass

    proxy_http_version 1.1;  # recommended with keepalive connections - http://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_http_version

    # WebSocket proxying - from http://nginx.org/en/docs/http/websocket.html
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection $connection_upgrade;
  }

}

这是基于 David Weldon 的 nginx 配置 改进的 nginx 配置.Andrew Mao 已经达到了非常相似的配置.

This is an improved nginx configuration based on David Weldon's nginx config. Andrew Mao has reached a very similar configuration.

记得还要将 HTTP_FORWARDED_COUNT 环境变量设置为前面的代理数量应用程序(通常为 1).

Remember to also set the HTTP_FORWARDED_COUNT environment variable to the number of proxies in front of the app (usually 1).

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