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read the transcript!
HTTP is the protocol (Hypertext Transfer Protocol) that’s used when you visit any website in your browser.
Firefox, to server: HTTP request - cat picture please
server, to Firefox: HTTP response - cat.gif
The exciting thing about HTTP is that even though it’s used for literally every website, HTTP requests and responses are easy to look at and understand:
server: here’s an HTTP response!
person: that response has the wrong Content-type header, that’s why the website isn’t working!
Example of what an HTTP request and response might look like:
request
request line:
GET / HTTP/I .1 .1
headers:
Host: examplecat.com
User-Agent: curl
Accept: */*
response
status:
HTTP/I .1 .1 200 0K
headers:
Cache-Control: max-age=604800
Content-Type: text/ html
Etag: "1541025663+ident"
Server: ECS (nyb/1D0B)
Vary: Accept-Encoding
X-Cache: HIT
Content-Length: 1270
body:
<!doctype html>
<title>Examp1e Cat</title>
...
that text is a lot to understand, so let’s get started learning what of it means!
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