4th value of http-request isnt correct? about drakma-async HOT 13 CLOSED

(as:with-event-loop (:catch-app-errors t)                                                                                                                                        
           (asf:multiple-future-bind (body status headers ruri)                                                                                                                           
               (drakma-async:http-request "https://www.firma8.com/assets/logo.png" :method :head :additional-headers '(("Connection" . "close")))                                         
             (format t "~s ~s ~s ~s" body status headers ruri)))                                                                                                                          
HEAD /assets/logo.png HTTP/1.1                                                                                                                                                            
Host: www.firma8.com                                                                                                                                                                      
User-Agent: Drakma/1.3.9 (SBCL 1.1.18; Linux; 3.14.4-x86_64-linode40; http://weitz.de/drakma/)                                                                                            
Accept: */*                                                                                                                                                                               
Connection: close                                                                                                                                                                         

HTTP/1.1 200 OK                                                                                                                                                                           
Server: nginx/1.2.2                                                                                                                                                                       
Date: Wed, 25 Jun 2014 02:12:18 GMT                                                                                                                                                       
Content-Type: image/png                                                                                                                                                                   
Content-Length: 6244                                                                                                                                                                      
Last-Modified: Tue, 22 Apr 2014 16:48:38 GMT                                                                                                                                              
Connection: close                                                                                                                                                                         
Expires: Thu, 31 Dec 2037 23:55:55 GMT                                                                                                                                                    
Cache-Control: max-age=315360000                                                                                                                                                          
Cache-Control: public                                                                                                                                                                     
Accept-Ranges: bytes                                                                                                                                                                      

NIL 200 ((:SERVER . "nginx/1.2.2")                                                                                                                                                        
         (:DATE . "Wed, 25 Jun 2014 02:12:18 GMT")                                                                                                                                        
         (:CONTENT-TYPE . "image/png") (:CONTENT-LENGTH . "6244")                                                                                                                         
         (:LAST-MODIFIED . "Tue, 22 Apr 2014 16:48:38 GMT")                                                                                                                               
         (:CONNECTION . "close")                                                                                                                                                          
         (:EXPIRES . "Thu, 31 Dec 2037 23:55:55 GMT")                                                                                                                                     
         (:CACHE-CONTROL . "max-age=315360000,public")                                                                                                                                    
         (:ACCEPT-RANGES . "bytes")) #<PURI:URI http://www.firma8.com/assets/logo.png>