Timebox for investigation: 5 SP

The facebook share does not work for us on several Magnolia websites. Facebook uses range request for reading the og-Tags from the websites. I think there is a problem in the processing of range requests in the RangeSupportFilter and the Magnolia Cache.
Strange is, that range requests with parameters work, because they bypass the cache. Range requests without a parameter have no body content.
I can't reproduce this on demopublic. Only thing I can see is, that Magnolia delivers more content without parameters than with parameters. Furthermore the content length is set to Integer.MAX.

See also https://groups.google.com/a/magnolia-cms.com/forum/#!topic/dev-list/UORUG13RwoQ