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Re: Character encoding of HTTP requests and responses

From: Larry Masinter <masinter@parc.xerox.com>
Date: Fri, 5 Dec 1997 22:33:55 PST
Message-ID: <3488F1D3.D4EBBD28@parc.xerox.com>
To: Albert Lunde <Albert-Lunde@nwu.edu>
CC: "www-international@w3.org" <www-international@w3.org>
> The headers are in a fairly stereotyped form that is always restricted to
> US-ASCII, with the exception of some headers that can contain free text. I
> think text in headers is assumed to be in ISO-8859-1. I _think_ that text
> in other character encodings can be represented as via and encoding defined
> in RFC 1522 and RFC 2047, but you have to read the grammer to see where
> this is allowed.

has details, namely:

>        The TEXT rule is only used for descriptive field contents and values
>        that are not intended to be interpreted by the message parser. Words of
>        *TEXT may contain characters from character sets other than ISO 8859-1
>        [22] only when encoded according to the rules of RFC 2047 [14].

TEXT is used in quoted text, mainly, but there are few text fields in
HTTP headers. ("Warning" headers for example, have text.)

Received on Saturday, 6 December 1997 01:34:26 UTC

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