NoCacheFilter

web.xml for slide contains:

<!-- If you're operating Slide with an SSL connection and with
authentication enabled
         and you notice that Internet Explorer is unable to open some file
types you may
         want to uncomment the following filter and its associated
filter-mapping. See the
         javadoc for the NoCacheFilter class for a description of the
problem and discussion
         of the ramifications. -->
    <filter>
        <filter-name>nocache</filter-name>
        <filter-class>org.apache.slide.webdav.filter.NoCacheFilter
</filter-class>
    </filter>


does anyone know what this comment refers to?

-mike