Headers

Не спорьте с Сергеями!!!

alert((() => {
    return test();

    function test () {
        return "hello world";
    };
})())
alert((() => {
    let a = test();
    if (true) {
        function test () {
            return "hello world";
        };
    }
    return a;
})())

<picture>

medium.jpg 1000w, large.jpg 2000w

Accept

  1. Accept-Charset
  2. Accept-Encoding
  3. Accept-Language

Accept: audio/*; q=0.2, audio/basic

Accept-Encoding: <compress | gzip | deflate | sdch | identity>

Accept-Encoding: compress, gzip

Accept-Encoding:

Accept-Encoding: *

Accept-Encoding: compress;q=0.5, gzip;q=1.0

Accept-Encoding: gzip;q=1.0, identity; q=0.5, *;q=0

Range

Range: bytes=50000-99999,250000-399999,500000-

Range: bytes=50000-99999,250000-399999,500000-

Text

    Accept-Ranges: bytes

Connection: closed | keep-alive

Cache-Control

Cache-Control: no-cache
Cache-Control: no-store
Cache-Control: max-age=3600
Cache-Control: max-stale=0
Cache-Control: min-fresh=0
Cache-Control: no-transform
Cache-Control: only-if-cached
Cache-Control: cache-extension

cache-request-directive

Cache

Expires

  1. If-Modified-Since
  2. If-Unmodified-Since
  3. Last-Modified
  4. ETag

Authorization

  1. Authorization
  2. Proxy-Authenticate
  3. Proxy-Authorization

CSP

Allow

OPTIONS · GET · HEAD · POST · PUT · DELETE · TRACE · CONNECT · PATCH

Vary

Vary

  • DPR
  • Width
  • Viewport-Width
  • Downlink
  • Save-Data

How do they look like with HTTP 2.0?

100100111101011010001010100001010111001001000100010110101

But what if we convert to text?

JsdIE DFKsdflsdf==dfflef,dmfn.sef

Questions

HTTP Headers

By Vladimir

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HTTP Headers

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