diff --git a/src/http_cgi.c b/src/http_cgi.c
index 63176d2..8d00126 100644
--- a/src/http_cgi.c
+++ b/src/http_cgi.c
@@ -1290,7 +1290,7 @@ int AddReqContentPtr (void * vmsg, void * body, int64 bodylen)
     if (bodylen < 0) bodylen = str_len(body);
     if (bodylen <= 0) return -3;
  
-    chunk_add_bufptr(msg->req_body_chunk, body, bodylen, NULL);
+    chunk_add_bufptr(msg->req_body_chunk, body, bodylen, NULL, NULL);
     return 0;
 }
  
@@ -1856,7 +1856,7 @@ int AddResContentPtr (void * vmsg, void * body, int64 bodylen)
     if (bodylen < 0) bodylen = str_len(body);
     if (bodylen <= 0) return -3;
  
-    chunk_add_bufptr(msg->res_body_chunk, body, bodylen, NULL);
+    chunk_add_bufptr(msg->res_body_chunk, body, bodylen, NULL, NULL);
     return 0;
 }
 
diff --git a/src/http_chunk.c b/src/http_chunk.c
index af2df99..b995790 100644
--- a/src/http_chunk.c
+++ b/src/http_chunk.c
@@ -312,7 +312,7 @@ int http_chunk_add_bufptr (void * vchk, void * vbgn, int len, int * rmlen)
             chk->recvsize += restlen;
             chk->recvlen += restlen - 2;
 
-            chunk_add_bufptr(chk->chunk, poct, restlen - 2, NULL);
+            chunk_add_bufptr(chk->chunk, poct, restlen - 2, NULL, NULL);
 
             arr_push(chk->item_list, item);
             chk->curitem = NULL;
@@ -328,7 +328,7 @@ int http_chunk_add_bufptr (void * vchk, void * vbgn, int len, int * rmlen)
             item->recvlen += min(restnum, restlen);
             chk->recvlen += min(restnum, restlen);
 
-            chunk_add_bufptr(chk->chunk, poct, min(restnum, restlen), NULL);
+            chunk_add_bufptr(chk->chunk, poct, min(restnum, restlen), NULL, NULL);
  
             if (rmlen) *rmlen = len;
 
diff --git a/src/http_cli_io.c b/src/http_cli_io.c
index 4e94e34..cca9060 100644
--- a/src/http_cli_io.c
+++ b/src/http_cli_io.c
@@ -594,13 +594,13 @@ int http_cli_reqbody_parse (void * vcon, void * vmsg)
     } else {
         chunk_add_bufptr(msg->req_body_chunk,
                          frameP(msg->req_body_stream),
-                         frameL(msg->req_body_stream), NULL);
+                         frameL(msg->req_body_stream), NULL, NULL);
     }
 
     http_form_multipart_parse(msg, NULL);
 
     if (msg->req_content_type && msg->req_contype_len > 0) {
-        if (strncasecmp(msg->req_content_type, "application/x-www-form-urlencoded", 33) == 0) {
+        if (str_ncasecmp(msg->req_content_type, "application/x-www-form-urlencoded", 33) == 0) {
             if (!msg->req_form_kvobj) {
                 msg->req_form_kvobj = kvpair_init(37, "&", "=");
             }
@@ -608,7 +608,7 @@ int http_cli_reqbody_parse (void * vcon, void * vmsg)
             chunk_ptr(msg->req_body_chunk, 0, NULL, (void **)&pbody, &restlen);
             kvpair_decode(msg->req_form_kvobj, pbody, restlen);
     
-        } else if (strncasecmp(msg->req_content_type, "application/json", 16) == 0) {
+        } else if (str_ncasecmp(msg->req_content_type, "application/json", 16) == 0) {
             if (!msg->req_form_json) {
                 msg->req_form_json = json_init(0, 0, 0);
             }
diff --git a/src/http_do.c b/src/http_do.c
index fddea98..1611747 100644
--- a/src/http_do.c
+++ b/src/http_do.c
@@ -164,6 +164,10 @@ void * do_http_get_msg (void * vmgmt, char * url, int urllen,
     msg->SetMethod(msg, "GET", 3);
     msg->SetURL(msg, url, urllen, 1);
  
+    str_secpy(msg->req_ver, sizeof(msg->req_ver)-1, "HTTP/1.1", 8);
+    msg->req_ver_major = 1;
+    msg->req_ver_minor = 1;
+
     msg->req_body_flag = BC_NONE;
  
     msg->dstport = msg->req_port;
@@ -234,6 +238,10 @@ void * do_http_post_msg (void * vmgmt, char * url, int urllen, char * mime,
     msg->SetMethod(msg, "POST", 4);
     msg->SetURL(msg, url, urllen, 1);
  
+    str_secpy(msg->req_ver, sizeof(msg->req_ver)-1, "HTTP/1.1", 8);
+    msg->req_ver_major = 1;
+    msg->req_ver_minor = 1;
+
     msg->req_body_flag = BC_CONTENT_LENGTH;
  
     msg->dstport = msg->req_port;
diff --git a/src/http_fcgi_io.c b/src/http_fcgi_io.c
index e3bb553..8d2da69 100644
--- a/src/http_fcgi_io.c
+++ b/src/http_fcgi_io.c
@@ -519,7 +519,7 @@ int http_fcgi_recv_forward (void * vcon)
 
                     if (pbyte + 4 <= ppar[0] + arlen[0]) {
                         /* add all STDOUT body into httpmsg->res_body_chunk */
-                        chunk_add_bufptr(httpmsg->res_body_chunk, pbody, bodylen, frm);
+                        chunk_add_bufptr(httpmsg->res_body_chunk, pbody, bodylen, frm, NULL);
 
                     } else {
                         /* header trailer \r\n\r\n across the 2 buffer, move them 
@@ -528,7 +528,7 @@ int http_fcgi_recv_forward (void * vcon)
                         frame_put_nlast(httpmsg->res_header_stream, pbody, len);
 
                         /* add STDOUT body into httpmsg->res_body_chunk */
-                        chunk_add_bufptr(httpmsg->res_body_chunk, pbody + len, bodylen - len, frm);
+                        chunk_add_bufptr(httpmsg->res_body_chunk, pbody + len, bodylen - len, frm, NULL);
                     }
 
                     /* move the pointer to the end of first FastCGI pdu */
@@ -540,7 +540,7 @@ int http_fcgi_recv_forward (void * vcon)
 
                     if (bodylen > len) {
                         /* add STDOUT body into httpmsg->res_body_chunk */
-                        chunk_add_bufptr(httpmsg->res_body_chunk, pbody + len, bodylen - len, frm);
+                        chunk_add_bufptr(httpmsg->res_body_chunk, pbody + len, bodylen - len, frm, NULL);
                     }
 
                     /* move the pointer to the end of first FastCGI pdu */
@@ -584,7 +584,7 @@ int http_fcgi_recv_forward (void * vcon)
 
             } else {  //STDOUT header has been got before
                 /* add all STDOUT body into httpmsg->res_body_chunk */
-                chunk_add_bufptr(httpmsg->res_body_chunk, pbody, bodylen, frm);
+                chunk_add_bufptr(httpmsg->res_body_chunk, pbody, bodylen, frm, NULL);
 
                 /* move the pointer to the end of first FastCGI pdu */
                 iter = (pend - pbgn);
@@ -655,16 +655,16 @@ int http_fcgi_handle (void * vmsg)
     HTTPMgmt * mgmt = NULL;
     FcgiSrv  * cgisrv = NULL;
     char       url[512];
- 
+
     if (!msg) return -1;
- 
+
     mgmt = (HTTPMgmt *)msg->httpmgmt;
     if (!mgmt) return -2;
- 
+
     /* check the request if it's to be transformed to FCGI server */
     if (http_fcgi_check(msg, url, sizeof(url)-1) <= 0)
         return -100;
- 
+
     msg->fastcgi = 1;
  
     cgisrv = http_fcgisrv_open(mgmt, url, 100);
diff --git a/src/http_fcgi_msg.c b/src/http_fcgi_msg.c
index fb53831..14c45cd 100644
--- a/src/http_fcgi_msg.c
+++ b/src/http_fcgi_msg.c
@@ -257,7 +257,8 @@ void * http_fcgimsg_open  (void * vsrv, void * vhttpmsg)
     http_fcgimsg_request_encode(msg);
     http_fcgimsg_abort_encode(msg);
 
-    chunk_prepend_bufptr(msg->req_body_chunk, frameP(msg->fcgi_request), frameL(msg->fcgi_request), 1);
+    chunk_prepend_bufptr(msg->req_body_chunk, frameP(msg->fcgi_request),
+                         frameL(msg->fcgi_request), NULL, NULL, 1);
 
     return msg;
 }
@@ -410,7 +411,7 @@ void fcgi_predefined_param_encode (frame_p frm, HTTPMsg * httpmsg)
 
     num = json_num(jpara);
     for (i = 0; i < num; i++) {
-         ret = json_iter(jpara, i, (void **)&name, &namelen, (void **)&value, &valuelen, NULL);
+         ret = json_iter(jpara, i, 0, (void **)&name, &namelen, (void **)&value, &valuelen, NULL);
          if (ret < 0) continue;
 
          if (!name || namelen <= 0) continue;
@@ -675,7 +676,7 @@ int http_fcgimsg_stdin_encode_chunk (void * vmsg, void * pbyte, int bytelen, voi
         fcgi_header_encode2(hdrbuf, FCGI_STDIN, /*msg->msgid*/1, contlen);
         chunk_add_buffer(msg->req_body_chunk, hdrbuf, 8);
 
-        chunk_add_bufptr(msg->req_body_chunk, (uint8 *)pbyte + pos, contlen, porig);
+        chunk_add_bufptr(msg->req_body_chunk, (uint8 *)pbyte + pos, contlen, porig, NULL);
  
         padding = contlen % 8;
         if (padding > 0) padding = 8 - padding;
diff --git a/src/http_listen.c b/src/http_listen.c
index 84bb2be..47c14a2 100644
--- a/src/http_listen.c
+++ b/src/http_listen.c
@@ -713,7 +713,7 @@ int http_host_build (void * vhl, void * jhl)
 
             num = json_num(jerrpage);
             for (j = 0; j < num; j++) {
-                ret = json_iter(jerrpage, j, (void **)&hname, &keylen,
+                ret = json_iter(jerrpage, j, 0, (void **)&hname, &keylen,
                                  (void **)&value, &valuelen, NULL);
                 if (ret > 0 && hname && keylen > 0) {
                     code = strtol(hname, NULL, 10);
diff --git a/src/http_mgmt.c b/src/http_mgmt.c
index a2ce5db..b7f548d 100644
--- a/src/http_mgmt.c
+++ b/src/http_mgmt.c
@@ -812,7 +812,7 @@ int http_conf_mime_init (void * vmgmt)
 
     num = json_num(mimeobj);
     for (i = 0; i < num; i++) {
-        json_iter(mimeobj, i, (void **)&mime, &mimelen, (void **)&ext, &extlen, NULL);
+        json_iter(mimeobj, i, 0, (void **)&mime, &mimelen, (void **)&ext, &extlen, NULL);
         if (!mime || mimelen <= 0 || !ext || extlen <= 0)
             continue;
 
diff --git a/src/http_proxy.c b/src/http_proxy.c
index 59cb138..d194caf 100644
--- a/src/http_proxy.c
+++ b/src/http_proxy.c
@@ -222,6 +222,10 @@ void * http_proxy_srvmsg_open (void * vmsg, char * url, int urllen)
     proxymsg->SetURL(proxymsg, url, urllen, 1);
     proxymsg->req_url_type = msg->req_url_type;
 
+    str_cpy(proxymsg->req_ver, msg->req_ver);
+    proxymsg->req_ver_major = msg->req_ver_major;
+    proxymsg->req_ver_minor = msg->req_ver_minor;
+
     proxymsg->dstport = proxymsg->req_port; 
 
     str_cpy(proxymsg->srcip, msg->srcip);
@@ -355,7 +359,7 @@ int http_proxy_srv_send (void * vsrvcon, void * vsrvmsg)
         isend = srvmsg->req_body_iolen >= climsg->req_body_length;
  
         if (rcvslen > 0) {
-            chunk_add_bufptr(srvmsg->req_body_chunk, pbgn, rcvslen, frm);
+            chunk_add_bufptr(srvmsg->req_body_chunk, pbgn, rcvslen, frm, NULL);
         }
  
     } else if (climsg->req_body_flag == BC_TE && num > 0) {
@@ -365,7 +369,7 @@ int http_proxy_srv_send (void * vsrvcon, void * vsrvmsg)
         isend = chunk->gotall;
  
         if (ret >= 0 && rcvslen > 0) {
-            chunk_add_bufptr(srvmsg->req_body_chunk, pbgn, rcvslen, frm);
+            chunk_add_bufptr(srvmsg->req_body_chunk, pbgn, rcvslen, frm, NULL);
         }
  
         climsg->req_body_iolen += rcvslen;
@@ -511,7 +515,7 @@ int http_proxy_cli_send (void * vclicon, void * vclimsg)
         isend = climsg->res_body_iolen >= srvmsg->res_body_length ? 1 : 0;
  
         if (rcvslen > 0) {
-            chunk_add_bufptr(climsg->res_body_chunk, pbgn, rcvslen, frm);
+            chunk_add_bufptr(climsg->res_body_chunk, pbgn, rcvslen, frm, NULL);
         }
  
     } else if (srvmsg->res_body_flag == BC_TE && num > 0) {
@@ -521,7 +525,7 @@ int http_proxy_cli_send (void * vclicon, void * vclimsg)
         isend = chunk->gotall;
  
         if (ret >= 0 && rcvslen > 0) {
-            chunk_add_bufptr(climsg->res_body_chunk, pbgn, rcvslen, frm);
+            chunk_add_bufptr(climsg->res_body_chunk, pbgn, rcvslen, frm, NULL);
         }
  
         srvmsg->res_body_iolen += rcvslen;
@@ -1060,6 +1064,10 @@ void * http_proxy_srv_cache_send (void * vmsg)
     srvmsg->SetURL(srvmsg, msg->fwdurl, msg->fwdurllen, 1);
     srvmsg->req_url_type = msg->req_url_type;
  
+    str_cpy(srvmsg->req_ver, msg->req_ver);
+    srvmsg->req_ver_major = msg->req_ver_major;
+    srvmsg->req_ver_minor = msg->req_ver_minor;
+
     srvmsg->dstport = srvmsg->req_port;
  
     str_cpy(srvmsg->srcip, msg->srcip);
diff --git a/src/http_request.c b/src/http_request.c
index e9e6c12..c70994b 100644
--- a/src/http_request.c
+++ b/src/http_request.c
@@ -898,7 +898,8 @@ int http_req_encoding (void * vmsg, int encode)
     msg->reqsent = 0;
     msg->req_stream_sent = 0;
 
-    chunk_prepend_bufptr(msg->req_body_chunk, frameP(msg->req_stream), frameL(msg->req_stream), 1);
+    chunk_prepend_bufptr(msg->req_body_chunk, frameP(msg->req_stream),
+                         frameL(msg->req_stream), NULL, NULL, 1);
 
     return 0;
 }
diff --git a/src/http_response.c b/src/http_response.c
index 66aca6c..e026eaa 100644
--- a/src/http_response.c
+++ b/src/http_response.c
@@ -656,7 +656,8 @@ int http_res_encoding (void * vmsg)
 
     msg->res_header_length = frameL(msg->res_stream);
 
-    chunk_prepend_bufptr(msg->res_body_chunk, frameP(msg->res_stream), frameL(msg->res_stream), 1);
+    chunk_prepend_bufptr(msg->res_body_chunk, frameP(msg->res_stream),
+                         frameL(msg->res_stream), NULL, NULL, 1);
 
 #if defined _DEBUG
 print_response(msg, stderr);
diff --git a/src/http_sndpxy.c b/src/http_sndpxy.c
index b787f2f..1b91af4 100644
--- a/src/http_sndpxy.c
+++ b/src/http_sndpxy.c
@@ -73,7 +73,7 @@ int http_send_proxy_init (void * vmgmt)
 
     num = json_num(jsndpxy);
     for (i = 0; i < num; i++) {
-        ret = json_iter(jsndpxy, i, (void **)&key, &keylen, (void **)&data, &datalen, NULL);
+        ret = json_iter(jsndpxy, i, 0, (void **)&key, &keylen, (void **)&data, &datalen, NULL);
         if (ret <= 0) continue;
         if (!key || keylen <= 0) continue;
         if (!data || datalen <= 0) continue;
diff --git a/src/http_srv.c b/src/http_srv.c
index 2847b0a..0e3631a 100644
--- a/src/http_srv.c
+++ b/src/http_srv.c
@@ -345,20 +345,20 @@ void * http_srv_open (void * vmgmt, char * ip, int port, int ssl_link, int maxco
 
         strncpy(srv->ip, ip, sizeof(srv->ip)-1);
         srv->port = port;
+    }
 
-        srv->ssl_link = ssl_link;
-        if (srv->ssl_link) {
+    srv->ssl_link = ssl_link;
+    if (srv->ssl_link) {
 #ifdef HAVE_OPENSSL
-            if (mgmt->srv_sslctx) {
-                srv->sslctx = mgmt->srv_sslctx;
-                srv->sslctx_alloc = 0;
-            } else {
-                srv->sslctx = http_ssl_client_ctx_init(mgmt->srv_con_cert,
-                                    mgmt->srv_con_prikey, mgmt->srv_con_cacert);
-                srv->sslctx_alloc = 1;
-            }
-#endif
+        if (mgmt->srv_sslctx) {
+            srv->sslctx = mgmt->srv_sslctx;
+            srv->sslctx_alloc = 0;
+        } else {
+            srv->sslctx = http_ssl_client_ctx_init(mgmt->srv_con_cert,
+                                mgmt->srv_con_prikey, mgmt->srv_con_cacert);
+            srv->sslctx_alloc = 1;
         }
+#endif
     }
 
     srv->maxcon = maxcon;
@@ -512,7 +512,7 @@ int http_srv_msg_dns (void * vmsg, void * cb)
     if (!dnscb) dnscb = http_srv_msg_dns_cb;
 
     if (msg->proxy && msg->proxyport > 0) {
-        ret = dns_query(mgmt->pcore, msg->proxy, msg->proxyport, dnscb, msg);
+        ret = dns_query(mgmt->pcore, msg->proxy, -1, dnscb, msg);
     } else {
         ret = dns_query(mgmt->pcore, msg->req_host, msg->req_hostlen, dnscb, msg);
     }
diff --git a/src/http_srv_io.c b/src/http_srv_io.c
index 44ffa5f..f1357b4 100644
--- a/src/http_srv_io.c
+++ b/src/http_srv_io.c
@@ -854,7 +854,7 @@ int http_srv_resbody_parse (void * vcon, void * vmsg, int64 * offset, int64 * sa
     } else {
         chunk_add_bufptr(msg->res_body_chunk,
                          frameP(msg->res_body_stream),
-                         frameL(msg->res_body_stream), NULL);
+                         frameL(msg->res_body_stream), NULL, NULL);
     }
 
     return 1;
diff --git a/src/http_uri.c b/src/http_uri.c
index 5801492..45c7c9e 100644
--- a/src/http_uri.c
+++ b/src/http_uri.c
@@ -161,7 +161,7 @@ int http_uri_parse (void * vuri)
         uri->scheme = pbgn;
         uri->schemelen = p - 1 - pbgn;
  
-        if (uri->schemelen == 5 && strncasecmp(uri->scheme, "https", 8) == 0)
+        if (uri->schemelen == 5 && strncasecmp(uri->scheme, "https", 5) == 0)
             uri->ssl_link = 1;
         else
             uri->ssl_link = 0;