Add an example for sessions + securecookie. Relative: http://support.iris-go.com/d/29-mark-cookie-for-session-as-secure

Former-commit-id: 10c30aabdf6b8fa59457ed8296b3e87108d3861c

adaptors/sessions/config.go

@@ -1,7 +1,6 @@
 package sessions
 
 import (
-	"encoding/base64"
 	"time"
 )
 
@@ -26,11 +25,6 @@ type (
 		// Defaults to "irissessionid"
 		Cookie string
 
-		// DecodeCookie set it to true to decode the cookie key with base64 URLEncoding
-		//
-		// Defaults to false
-		DecodeCookie bool
-
 		// Encode the cookie value if not nil.
 		// Should accept as first argument the cookie name (config.Name)
 		//         as second argument the server's generated session id.
@@ -83,12 +77,6 @@ func (c Config) Validate() Config {
 		c.Cookie = DefaultCookieName
 	}
 
-	if c.DecodeCookie {
-		c.Cookie = base64.URLEncoding.EncodeToString([]byte(c.Cookie)) // change the cookie's name/key to a more safe(?)
-		// get the real value for your tests by:
-		//sessIdKey := url.QueryEscape(base64.URLEncoding.EncodeToString([]byte(Sessions.Cookie)))
-	}
-
 	if c.CookieLength <= 0 {
 		c.CookieLength = DefaultCookieLength
 	}