update the vendor json library which is used when 'WithOptimizations' passed on 'app.Run' and resolve https://github.com/kataras/iris/pull/839#issuecomment-351374343

Former-commit-id: ad3354717d593393a3f3aec863ec92f1f7e1c829

Gopkg.lock

@@ -119,7 +119,7 @@
   branch = "master"
   name = "github.com/json-iterator/go"
   packages = ["."]
-  revision = "2dc0031b26575ddf5dab09ab7795105a05575473"
+  revision = "13f86432b882000a51c6e610c620974462691a97"
 
 [[projects]]
   branch = "master"

configuration.go

@@ -32,7 +32,7 @@ func init() {
 	filename := homeConfigurationFilename(".yml")
 	c, err := parseYAML(filename)
 	if err != nil {
-		// this error will be occured the first time that the configuration
+		// this error will be occurred the first time that the configuration
 		// file doesn't exist.
 		// Create the YAML-ONLY global configuration file now using the default configuration 'c'.
 		// This is useful when we run multiple iris servers that share the same

context/context.go

@@ -2523,7 +2523,7 @@ func (ctx *context) RemoveCookie(name string) {
 	c.Expires = exp
 	c.MaxAge = -1
 	ctx.SetCookie(c)
-	// delete request's cookie also, which is temporary available
+	// delete request's cookie also, which is temporary available.
 	ctx.request.Header.Set("Cookie", "")
 }
 

sessions/config.go

@@ -56,6 +56,13 @@ type (
 		// Defaults to false.
 		CookieSecureTLS bool
 
+		// AllowReclaim will allow to
+		// Destroy and Start a session in the same request handler.
+		// All it does is that it removes the cookie for both `Request` and `ResponseWriter`.
+		//
+		// Defaults to false.
+		AllowReclaim bool
+
 		// Encode the cookie value if not nil.
 		// Should accept as first argument the cookie name (config.Cookie)
 		//         as second argument the server's generated session id.

sessions/cookie.go

@@ -38,7 +38,8 @@ func AddCookie(ctx context.Context, cookie *http.Cookie) {
 }
 
 // RemoveCookie deletes a cookie by it's name/key
-func RemoveCookie(ctx context.Context, name string) {
+// If "purge" is true then it removes the, temp, cookie from the request as well.
+func RemoveCookie(ctx context.Context, name string, purge bool) {
 	c, err := ctx.Request().Cookie(name)
 	if err != nil {
 		return
@@ -50,6 +51,11 @@ func RemoveCookie(ctx context.Context, name string) {
 	c.Value = ""
 	c.Path = "/"
 	AddCookie(ctx, c)
+
+	if purge {
+		// delete request's cookie also, which is temporary available.
+		ctx.Request().Header.Set("Cookie", "")
+	}
 }
 
 // IsValidCookieDomain returns true if the receiver is a valid domain to set

sessions/sessions.go

@@ -146,7 +146,7 @@ func (s *Sessions) Destroy(ctx context.Context) {
 	if cookieValue == "" { // nothing to destroy
 		return
 	}
-	RemoveCookie(ctx, s.config.Cookie)
+	RemoveCookie(ctx, s.config.Cookie, s.config.AllowReclaim)
 
 	s.provider.Destroy(cookieValue)
 }