Search Appliance
Syntax: comma-separated list of query variable names
If set, the Search Appliance will remove these query variables when walking URLs. This can be useful when you can establish a few irrelevant query variables, but anything else would be significant.
URLs with these query variables do not cause any kind of error, they simply have the variables stripped out and continue processing normally.
For example, setting Ignore Query Vars to printit will turn the URL
http://www.example.com//page.aspx?state=A3N4&id=432&printit=Y
into
http://www.example.com//page.aspx?state=A3N4&id=432