The <META> element is an extensible container for use in identifying specialized document meta-information. Meta-information has two main functions:
Each <META> element specifies a name/value pair. If multiple META elements are provided with the same name, their combined contents-- concatenated as a comma-separated list--is the value associated with that name.
HTTP servers may read the content of the document <HEAD> to generate header fields corresponding to any elements defining a value for the attribute HTTP-EQUIV.
Examples
If the document contains:
<META HTTP-EQUIV="Expires" CONTENT="Tue, 04 Dec 1993 21:29:02 GMT"> <meta http-equiv="Keywords" CONTENT="Fred"> <META HTTP-EQUIV="Reply-to" content="fielding@ics.uci.edu (Roy Fielding)"> <Meta Http-equiv="Keywords" CONTENT="Barney">
then the server may include the following header fields:
Expires: Tue, 04 Dec 1993 21:29:02 GMT Keywords: Fred, Barney Reply-to: fielding@ics.uci.edu (Roy Fielding)
as part of the HTTP response to a `GET' or `HEAD' request for that document.
An HTTP server must not use the <META> element to form an HTTP response header unless the HTTP-EQUIV attribute is present.
An HTTP server may disregard any <META> elements that specify information controlled by the HTTP server, for example `Server', `Date', and `Last-modified'.
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