我一直在我的服务器上收到此错误：[error] Could not check origin for Phoenix.Socket transport.
我在myoku上运行的Phoenix和JS应用程序在使用频道的myapp.herokuapp.com上很好。
我按照heroku custom domain说明操作，在将prod.exs配置更改为：url: [scheme: "https", host: "myapp.com", port: 443]
后，无法加载我应用的javascript
从：
url: [scheme: "https", host: "myapp.herokuapp.com", port: 443]
使用自定义域myapp.com访问应用程序时出现此JS错误：
WebSocket connection to 'wss://myapp.com/socket/websocket?token=undefined&vsn=1.0.0' failed: Error during WebSocket handshake: Unexpected response code: 400
随附heroku日志：
2016-11-27T03:27:52.259269+00:00 heroku[router]: at=info method=GET path="/socket/websocket?token=undefined&vsn=1.0.0" host=myapp.com request_id=94bd304b-e8f5-44aa-aff0-9336425e40b3 fwd="2601:602:9301:2b00:3c91:6660:9593:ad2c,2601:0602:9301:2b00:3c91:6660:9593:ad2c,108.162.245.66" dyno=web.1 connect=1ms service=1ms status=400 bytes=119
2016-11-27T03:28:03.671267+00:00 heroku[router]: at=info method=GET path="/socket/websocket?token=undefined&vsn=1.0.0" host=myapp.herokuapp.com request_id=71483e0c-8f2a-4485-8506-5931513de1fb fwd="50.159.116.207" dyno=web.1 connect=0ms service=1ms status=403 bytes=195
2016-11-27T03:28:03.650158+00:00 app[web.1]: 03:28:03.649 [error] Could not check origin for Phoenix.Socket transport.
2016-11-27T03:28:03.650173+00:00 app[web.1]:
2016-11-27T03:28:03.650174+00:00 app[web.1]: This happens when you are attempting a socket connection to
2016-11-27T03:28:03.650175+00:00 app[web.1]: a different host than the one configured in your config/
2016-11-27T03:28:03.650175+00:00 app[web.1]: files. For example, in development the host is configured
2016-11-27T03:28:03.650176+00:00 app[web.1]: to "localhost" but you may be trying to access it from
2016-11-27T03:28:03.650177+00:00 app[web.1]: "127.0.0.1". To fix this issue, you may either:
2016-11-27T03:28:03.650178+00:00 app[web.1]:
2016-11-27T03:28:03.650178+00:00 app[web.1]: 1. update [url: [host: ...]] to your actual host in the
2016-11-27T03:28:03.650179+00:00 app[web.1]: config file for your current environment (recommended)
2016-11-27T03:28:03.650179+00:00 app[web.1]:
2016-11-27T03:28:03.650180+00:00 app[web.1]: 2. pass the :check_origin option when configuring your
2016-11-27T03:28:03.650180+00:00 app[web.1]: endpoint or when configuring the transport in your
2016-11-27T03:28:03.650181+00:00 app[web.1]: UserSocket module, explicitly outlining which origins
2016-11-27T03:28:03.650182+00:00 app[web.1]: are allowed:
2016-11-27T03:28:03.650182+00:00 app[web.1]:
2016-11-27T03:28:03.650183+00:00 app[web.1]: check_origin: ["https://example.com",
2016-11-27T03:28:03.650184+00:00 app[web.1]: "//another.com:888", "//other.com"]
当我访问myapp.herokuapp.com时，JS错误略有不同：
WebSocket connection to 'wss://myapp.herokuapp.com/socket/websocket?token=undefined&vsn=1.0.0' failed: Error during WebSocket handshake: Unexpected response code: 403
随附heroku日志：
2016-11-27T03:31:31.615163+00:00 heroku[router]: at=info method=GET path="/socket/websocket?token=undefined&vsn=1.0.0" host=myapp.herokuapp.com request_id=d43b57da-6aef-426b-ba69-7706c95ccc6d fwd="50.159.116.207" dyno=web.1 connect=0ms service=1ms status=403 bytes=195
2016-11-27T03:31:31.580305+00:00 app[web.1]: 03:31:31.579 [error] Could not check origin for Phoenix.Socket transport.
2016-11-27T03:31:31.580319+00:00 app[web.1]:
2016-11-27T03:31:31.580320+00:00 app[web.1]: This happens when you are attempting a socket connection to
2016-11-27T03:31:31.580321+00:00 app[web.1]: a different host than the one configured in your config/
2016-11-27T03:31:31.580322+00:00 app[web.1]: files. For example, in development the host is configured
2016-11-27T03:31:31.580322+00:00 app[web.1]: to "localhost" but you may be trying to access it from
2016-11-27T03:31:31.580323+00:00 app[web.1]: "127.0.0.1". To fix this issue, you may either:
2016-11-27T03:31:31.580324+00:00 app[web.1]:
2016-11-27T03:31:31.580325+00:00 app[web.1]: 1. update [url: [host: ...]] to your actual host in the
2016-11-27T03:31:31.580325+00:00 app[web.1]: config file for your current environment (recommended)
2016-11-27T03:31:31.580326+00:00 app[web.1]:
2016-11-27T03:31:31.580326+00:00 app[web.1]: 2. pass the :check_origin option when configuring your
2016-11-27T03:31:31.580327+00:00 app[web.1]: endpoint or when configuring the transport in your
2016-11-27T03:31:31.580327+00:00 app[web.1]: UserSocket module, explicitly outlining which origins
2016-11-27T03:31:31.580328+00:00 app[web.1]: are allowed:
2016-11-27T03:31:31.580329+00:00 app[web.1]:
2016-11-27T03:31:31.580329+00:00 app[web.1]: check_origin: ["https://example.com",
2016-11-27T03:31:31.580330+00:00 app[web.1]: "//another.com:888", "//other.com"]
当我将配置保留为url: [scheme: "https", host: "myapp.herokuapp.com", port: 443]时，访问myapp.herokuapp.com时没有错误，但是当我访问myapp.com时，我在JS控制台中收到以下错误：
WebSocket connection to 'wss://myapp.com/socket/websocket?token=undefined&vsn=1.0.0' failed: Error during WebSocket handshake: Unexpected response code: 403
随附heroku日志：
2016-11-27T03:34:55.671996+00:00 heroku[router]: at=info method=GET path="/socket/websocket?token=undefined&vsn=1.0.0" host=myapp.com request_id=ab595797-26ab-4952-ac77-2ab31bf18384 fwd="50.159.116.207,50.159.116.207,108.162.245.248" dyno=web.1 connect=0ms service=1ms status=403 bytes=214
2016-11-27T03:34:55.661334+00:00 app[web.1]: This happens when you are attempting a socket connection to
2016-11-27T03:34:55.661335+00:00 app[web.1]: a different host than the one configured in your config/
2016-11-27T03:34:55.661321+00:00 app[web.1]: 03:34:55.661 [error] Could not check origin for Phoenix.Socket transport.
2016-11-27T03:34:55.661333+00:00 app[web.1]:
2016-11-27T03:34:55.661347+00:00 app[web.1]: files. For example, in development the host is configured
2016-11-27T03:34:55.661348+00:00 app[web.1]: to "localhost" but you may be trying to access it from
2016-11-27T03:34:55.661349+00:00 app[web.1]: "127.0.0.1". To fix this issue, you may either:
2016-11-27T03:34:55.661350+00:00 app[web.1]: 1. update [url: [host: ...]] to your actual host in the
2016-11-27T03:34:55.661352+00:00 app[web.1]: endpoint or when configuring the transport in your
2016-11-27T03:34:55.661351+00:00 app[web.1]: config file for your current environment (recommended)
2016-11-27T03:34:55.661349+00:00 app[web.1]:
2016-11-27T03:34:55.661351+00:00 app[web.1]:
2016-11-27T03:34:55.661352+00:00 app[web.1]: 2. pass the :check_origin option when configuring your
2016-11-27T03:34:55.661354+00:00 app[web.1]: are allowed:
2016-11-27T03:34:55.661355+00:00 app[web.1]:
2016-11-27T03:34:55.661353+00:00 app[web.1]: UserSocket module, explicitly outlining which origins
2016-11-27T03:34:55.661355+00:00 app[web.1]: check_origin: ["https://example.com",
2016-11-27T03:34:55.661356+00:00 app[web.1]: "//another.com:888", "//other.com"]
我尝试将check_origin设置为false，但它也无效。访问myapp.com时，heroku日志不再显示错误。
heroku[router]: at=info method=GET path="/socket/websocket?token=undefined&vsn=1.0.0" host=myapp.com request_id=379b61c9-94be-4a1c-ac43-419e9554ac51 fwd="2601:602:9301:2b00:3c91:6660:9593:ad2c,2601:0602:9301:2b00:3c91:6660:9593:ad2c,108.162.245.122" dyno=web.1 connect=1ms service=1ms status=400 bytes=119
但我仍然在JS控制台中得到这个：
WebSocket connection to 'wss://myapp.com/socket/websocket?token=undefined&vsn=1.0.0' failed: Error during WebSocket handshake: Unexpected response code: 400
我的应用终端的完整配置
config :my_app, MyApp.Endpoint,
http: [port: {:system, "PORT"}],
url: [scheme: "https", host: "myapp.com", port: 443],
check_origin: false,
force_ssl: [rewrite_on: [:x_forwarded_proto]],
cache_static_manifest: "priv/static/manifest.json",
secret_key_base: System.get_env("SECRET_KEY_BASE")
修改：为了我的dns使用cloudflare并将ssl选项设置为full，这是值得的。
编辑2 ：如果我在配置中保留check_origin: false并且从以下位置更改了socket.js文件，则可以加载myapp.com：
let socket = new Socket("/socket", {params: {token: window.userToken}})
为：
let socket = new Socket("wss://myapp.herokuapp.com/socket", {params: {token: window.userToken}})
由于我不想保持check_origin错误，我尝试将其更新为：
url: [scheme: "https", host: "myapp.com", port: 443],
check_origin: ["myapp.com", "myapp.herokuapp.com", "//myapp.com", "//myapp.herokuapp.com"],
使用这些新设置重新编译应用程序后，当我尝试访问myapp.com时，它在控制台中留下了这个JS错误：
WebSocket connection to 'wss://myapp.herokuapp.com/socket/websocket?token=undefined&vsn=1.0.0' failed: Error during WebSocket handshake: Unexpected response code: 503
答案 0 :(得分：0)
第一个问题在于使用heroku和cloudflare。本文说它不能用自定义网址完成，你只能使用默认的heroku网址 https://support.cloudflare.com/hc/en-us/articles/205893698-Configure-Cloudflare-and-Heroku-over-HTTPS
说，不使用cloudflare我也遇到了问题。对我有用的是 - 将check_origin参数设置为您正在访问的URL的完整路径。 对我来说，我也使用www，所以我的配置看起来像这样
url: [scheme: "https", host: "myapp.com", port: 443],
check_origin: [
"https://myapp.com",
"https://www.myapp.com"
],
（我的配置的其余部分与你的相同）