HTTP - Response


An HTTP response is a message sent from a server to a client in response to a request.

It's the second part of a fetch, the first being a request.


Example of a response that returns an HTML document

HTTP/1.1 200 OK
Date: Sun, 14 Feb 2021 13:39:15 GMT
Content-Type: text/html; charset=utf-8
Connection: keep-alive
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate
Pragma: no-cache
Set-Cookie: Session=Z2VyYXJkbm; path=/; secure; HttpOnly
X-UA-Compatible: IE=edge,chrome=1
Content-Length: 66697

<!DOCTYPE html >
<html xmlns="" xml:lang="en" lang="en" dir="ltr" style="font-size:">
<meta name="generator


The response message has:


Most known Response header

Content Type



cors headers


A response is produced by an handler

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