HTTP Headers

Request

• Host (required)
• User-Agent
• Accept
• Accept-Language
• Accept-Encoding
• Origin
• Referer
• Connection
• Content-Length
• Range
• Cache-Control
  • max-age
  • max-stale
  • min-fresh
  • no-cache
  • no-store
  • no-transform
  • only-if-cached
  • stale-if-error
• If-Modified-Since
• If-Unmodified-Since
• If-Match
• If-None-Match
• If-Range
• Authorization
• Expect
• Cookie

Response

• Content-Length
• Content-Type
• Content-Encoding
• Transfer-Encoding
• Location
• Allow
• Link
• Date
• Accept-Ranges
• Content-Range
• Age
• Expires
• Vary
• ETag
• Cache-Control
  • max-age
  • s-maxage
  • no-cache
  • no-store
  • no-transform
  • must-revalidate
  • proxy-revalidate
  • must-understand
  • private
  • public
  • immutable
  • stale-while-revalidate
  • stale-if-error
  • https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control
  • https://github.com/mdn/browser-compat-data/blob/main/http/headers/cache-control.json
• Set-Cookie
• Access-Control-Allow-Origin
• Upgrade
• Alt-Svc
• Retry-After
• Server-Timing
• Report-To
• Last-Event-ID