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doc: remove warning from response.writeHead #32700

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cecchi wants to merge 2 commits into from
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doc: remove warning from response.writeHead #32700

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a2b0c19
doc: remove warning from `response.writeHead`
cecchi Apr 7, 2020
49d1a0f
fixup: include link to `Buffer.byteLength()`
cecchi Apr 7, 2020
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9 changes: 3 additions & 6 deletions doc/api/http.md
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Expand Up @@ -1713,12 +1713,9 @@ const server = http.createServer((req, res) => {
});
```

`Content-Length` is given in bytes not characters. The above example
works because the string `'hello world'` contains only single byte characters.
If the body contains higher coded characters then `Buffer.byteLength()`
should be used to determine the number of bytes in a given encoding.
And Node.js does not check whether `Content-Length` and the length of the body
which has been transmitted are equal or not.
`Content-Length` is given in bytes, not characters. Node.js does not check
whether `Content-Length` and the length of the body which has been transmitted
are equal or not.

Attempting to set a header field name or value that contains invalid characters
will result in a [`TypeError`][] being thrown.
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