Latest commit cac84f7
Feb 11, 2016
According to [the Rack specs](http://www.rubydoc.info/github/rack/rack/file/SPEC), `QUERY_STRING` must be present, even if empty. > The portion of the request URL that follows the ?, if any. May be empty, **but is always required!** The URI parser will return `nil` for a missing `QUERY_STRING`, which results in non-conformity with the Rack standard. By making sure this is a string, this issue would be resolved.