def _call( env )
      request = Rack::Request.new(env.dup)
      env.merge! "rack.jquery.organisation" => @organisation
      env.merge! "rack.jquery.raise" => @raise
      if request.path_info == @http_path_to_jquery.to_path
        response = respond_with_local_file JQUERY_FILE_NAME, request
        response.headers.merge!("X-SourceMap" => @http_path_to_source_map.to_path) if @source_map
        response.finish
      elsif request.path_info == @http_path_to_source_map.to_path
        response = respond_with_local_file JQUERY_SOURCE_MAP_FILE_NAME, request
        response.finish
      else
        @app.call(env)
      end
    end
def _call( env )
      request = Rack::Request.new(env.dup)
      env.merge! "rack.jquery.organisation" => @organisation
      env.merge! "rack.jquery.raise" => @raise
      if request.path_info == @http_path_to_jquery.to_path
        response = respond_with_local_file JQUERY_FILE_NAME, request
        response.headers.merge!("X-SourceMap" => @http_path_to_source_map.to_path) if @source_map
        response.finish
      elsif request.path_info == @http_path_to_source_map.to_path
        response = respond_with_local_file JQUERY_SOURCE_MAP_FILE_NAME, request
        response.finish
      else
        @app.call(env)
      end
    end
For thread safety
 @param (see #call)