2.3.14 AddAltByEncoding
AddAltByEncoding specifies a character string associated with the MIME encoding to be displayed instead of the icon when the directory index is displayed.
Description
AddAltByEncoding displays character strings associated with the MIME encoding (for example, x-compress) when the directory index is displayed in an environment where icons cannot be displayed. You can specify multiple MIME encodings for one character_string. If you specify this directive more than once, you cannot specify different character strings for the same MIME type.
Syntax
AddAltByEncoding character_string MIME_encoding [MIME_encoding ...]
Locations where it can be written
httpsd.conf, <VirtualHost>, <Directory>, and .htaccess
Overwrite permission
Indexes level
Example
AddAltByEncoding "gzip" x-gzip