The Accept-language list fr-CH,de.
Language codes without the country codes (fr in the case of fr-CH):
The DefaultLanguage, such as en, defined in the magnus.conf file.
If none of these are found, the server tries:
Keep in mind when naming your localized files that country codes like CH and TW are converted to lower case and dashes (-) are converted to underscores (_).
Enabling the acceptlanguage setting has a performance penalty since the server has to check for content in every language specified in the Accept-language as per the algorithm illustrated above.