Webflags: gi

HTTP Content-Type Header

Parse the value of an HTTP Content-Type header, capturing the media type and optional charset.

Try it in RegexPro →

Available in

JSSupported

JavaScript / ECMAScript

Browser-native RegExp. Default if you don't pick.

PYSupported

Python (re)

CPython stdlib `re`. Unicode-aware `\w` and `\d` by default.

GOSupported

Go (RE2)

Linear-time matching. No backreferences or lookarounds.

Pattern

regexengine-agnostic
Content-Type:\s*([a-z]+\/[\w.+\-]+)(?:;\s*charset=([\w\-]+))?   (flags: gi)

Raw source: Content-Type:\s*([a-z]+\/[\w.+\-]+)(?:;\s*charset=([\w\-]+))?

How it works

Content-Type:\s* matches the header name and required whitespace. ([a-z]+\/[\w.+\-]+) captures the type/subtype (the i flag makes this case-insensitive). (?:;\s*charset=([\w\-]+))? optionally captures a charset parameter — UTF-8, iso-8859-1, etc.

Examples

Input

Content-Type: text/html; charset=utf-8

Matches

  • Content-Type: text/html; charset=utf-8

Input

content-type: application/json

Matches

  • content-type: application/json

Input

Authorization: Basic xyz

No match

—

Common use cases

  • •Reverse-proxy / WAF rule matching
  • •API gateway request inspection
  • •HTTP log analysis
  • •Content-negotiation debugging
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