Trailer

Trailer: header-names

header-names

HTTP header fields which will be present in the trailer part of chunked messages. These header fields are disallowed:

• message framing headers (e.g., Transfer-Encoding and Content-Length),
• routing headers (e.g., Host),
• request modifiers (e.g., controls and conditionals, like Cache-Control, Max-Forwards, or TE), 
• authentication headers (e.g., Authorization or Set-Cookie),
• or Content-Encoding, Content-Type, Content-Range, and Trailer itself.

Chunked transfer encoding using a trailing header

In this example, the Expires header is used at the end of the chunked message and serves as a trailing header.

HTTP/1.1 200 OK 
Content-Type: text/plain 
Transfer-Encoding: chunked
Trailer: Expires

7\r\n 
Mozilla\r\n 
9\r\n 
Developer\r\n 
7\r\n 
Network\r\n 
0\r\n 
Expires: Wed, 21 Oct 2015 07:28:00 GMT\r\n
\r\n

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

• Transfer-Encoding
• TE

• Chunked transfer encoding