Variant objects in the context of HTTP are objects served by an Origin Content Server in a type of transmitted data variation (i.e. uncompressed, compressed, different languages, etc.).

HTTP/1.1 (1997–1999) ^{[1] [2]} introduces Content/Accept headers. These are used in HTTP requests and responses to state which variant the data is presented in.^{[ citation needed]}

Example Scenario

Client:

GET /encoded_data.html HTTP/1.1
Host: www.example.com
Accept-Encoding: gzip

Server:

HTTP/1.1 200 OK 
Server: http-example-server
Content-Length: 23
Content-Encoding: gzip

<23 bytes of gzip compressed data>

See also

• HTTP
• HTTP compression
• List of HTTP headers
• Web cache

References

External links

• How Apache handles content negotiation

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