diff --git a/include/common/defaults.h b/include/common/defaults.h
index 84ab3d4..d1ce021 100644
--- a/include/common/defaults.h
+++ b/include/common/defaults.h
@@ -110,6 +110,12 @@
 #define COOKIE_DELIM    '~'
 #endif
 
+// this delimitor is used between a server's name and a last visit date in
+// cookies exchanged with the client.
+#ifndef COOKIE_DELIM_DATE
+#define COOKIE_DELIM_DATE       '|'
+#endif
+
 #define CONN_RETRIES    3
 
 #define	CHK_CONNTIME    2000
diff --git a/src/proto_http.c b/src/proto_http.c
index 4e4ac4d..bf81196 100644
--- a/src/proto_http.c
+++ b/src/proto_http.c
@@ -5922,10 +5922,14 @@
 				}
 			}
 
-			/* For cookies in prefix mode. The form is :
+			/* Persistence cookies in passive, rewrite or insert mode have the
+			 * following form :
 			 *
-			 *    Cookie: NAME=SRV~VALUE
+			 *    Cookie: NAME=SRV[|<lastseen>[|<firstseen>]]
 			 *
+			 * For cookies in prefix mode, the form is :
+			 *
+			 *    Cookie: NAME=SRV~VALUE
 			 */
 			if ((att_end - att_beg == t->be->cookie_len) && (t->be->cookie_name != NULL) &&
 			    (memcmp(att_beg, t->be->cookie_name, att_end - att_beg) == 0)) {
@@ -5952,10 +5956,21 @@
 					for (delim = val_beg; delim < val_end; delim++)
 						if (*delim == COOKIE_DELIM)
 							break;
-				}
-				else
+				} else {
+					char *vbar1;
 					delim = val_end;
-
+					/* Now check if the cookie contains a date field, which would
+					 * appear after a vertical bar ('|') just after the server name
+					 * and before the delimiter.
+					 */
+					vbar1 = memchr(val_beg, COOKIE_DELIM_DATE, val_end - val_beg);
+					if (vbar1) {
+						/* OK, so left of the bar is the server's cookie and
+						 * right is the last seen date.
+						 */
+						delim = vbar1++;
+					}
+				}
 
 				/* Here, we'll look for the first running server which supports the cookie.
 				 * This allows to share a same cookie between several servers, for example