How to inform remote server about your local character set
According to
Hypertext Transfer Protocol -- HTTP/1.1 (RFC 2616)
your browser may request a particular document character
set using the
Accept-Charset
header field.
For example,
Accept-Charset: koi8-r, windows-1251; q=0.8
means that your browser is aware about
koi8-r
and windows-1251
character sets
besides the default
iso-8859-1 that any browser must be able to handle.
If no quality (q) parameter is given, the value of 1.0 is assumed (as for
koi8-r character set in this example). Character sets with bigger
quality values are preferred.
If no Accept-Charset field is given, any character set
is acceptable. In this case you can't tell the server that you use KOI8-R
character set and it can feed you with, say, CP1251.
KOI8-R Setup: OS & applications
(expanded below)