strip_path_prefix (Merb::Rack::PathPrefix)

    # File lib/merb-core/rack/middleware/path_prefix.rb, line 24
          def strip_path_prefix(env)
            ['PATH_INFO', 'REQUEST_URI'].each do |path_key|
              if env[path_key] =~ @path_prefix
                env[path_key].sub!(@path_prefix, Merb::Const::EMPTY_STRING)
                env[path_key] = Merb::Const::SLASH if env[path_key].empty?
              end
            end
          end