Processing of matching file extensions to resource names continues for each and every filename extension that matches. In other words, a filename may contain multiple extensions if it has been encoded multiple times.
Example
Assume the following directory of "MimeEncoding" variables:
In this example, all resources with names ending in ".z" or ".gz" will be treated as though encoded with the x-gzip MIME encoding method. An example filename would be "compressed.html.gz".
z x-gzip gz x-gzip