for example:
http://123.456.789.123/page.html, 200 OK
http://123.456.789.123/page.html?, 404 not found.
http://123.456.789.123/page.html?debug, 404 not found, too.
Our website, using the same version, does not show this behavior:
http://www.gwan.ch/en_timeline.html?
http://www.gwan.ch/developers?
Both request have the same effect as:
http://www.gwan.ch/en_timeline.html
http://www.gwan.ch/developers
The support of the query string for static contents (as opposed to servlets) has been implemented in year 2013.