About
An http message is a textual message that consists of:
There are two kinds of messages:
They differ in the format of the first line, but both can have header fields and an optional body (entity).
A request followed by a response is called a fetch.
Example
Example with a get request that shows only a list of header
GET https://datacadamia.com/web/http/method HTTP/1.1 Host: datacadamia.com Connection: keep-alive Pragma: no-cache Cache-Control: no-cache User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.150 Safari/537.36 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9 Referer: https://datacadamia.com/web/http/method Accept-Encoding: gzip, deflate, br Accept-Language: en-US,en;q=0.9,nl;q=0.8,fr;q=0.7 Cookie: Session=2he81i5j7tvd5