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minor fixes

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Ilya Kantor 2019-11-28 13:56:48 +03:00
parent 2af74029e2
commit ce8e68f21c
5 changed files with 15 additions and 12 deletions
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5-network/11-websocket/article.md
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@ -119,9 +119,9 @@ For instance:
- `Sec-WebSocket-Extensions: deflate-frame` means that the browser supports data compression. An extension is something related to transferring the data, functionality that extends WebSocket protocol. The header `Sec-WebSocket-Extensions` is sent automatically by the browser, with the list of all extenions it supports.
- `Sec-WebSocket-Protocol: soap, wamp` means that we'd like to transfer not just any data, but the data in [SOAP](http://en.wikipedia.org/wiki/SOAP) or WAMP ("The WebSocket Application Messaging Protocol") protocols. WebSocket subprotocols are registered in the [IANA catalogue](http://www.iana.org/assignments/websocket/websocket.xml).
- `Sec-WebSocket-Protocol: soap, wamp` means that we'd like to transfer not just any data, but the data in [SOAP](http://en.wikipedia.org/wiki/SOAP) or WAMP ("The WebSocket Application Messaging Protocol") protocols. WebSocket subprotocols are registered in the [IANA catalogue](http://www.iana.org/assignments/websocket/websocket.xml). So, this header describes data formats that we're going to use.
This optional header is set by us, to tell the server which subprotocols our code supports, using the second (optional) parameter of `new WebSocket`. That's the array of subprotocols, e.g. if we'd like to use SOAP or WAMP:
This optional header is set using the second parameter of `new WebSocket`. That's the array of subprotocols, e.g. if we'd like to use SOAP or WAMP:
```js
let socket = new WebSocket("wss://javascript.info/chat", ["soap", "wamp"]);