Version 4.1.2

system/Login/Login.php

@@ -106,6 +106,12 @@ class _Login
 				static::$allHandlers	= static::$handlers;
 			}
 		}
+		
+		/* If we have no handlers, use the standard internal */
+		if ( empty( static::$handlers ) )
+		{
+			static::$handlers['Internal'] = \IPS\Login\LoginAbstract::load('internal');
+		}
 
 		return static::$handlers;
 	}
@@ -173,7 +179,7 @@ class _Login
 				}
 			}
 
-			$ref = new \IPS\Http\Url( $_SERVER['HTTP_REFERER'] );
+			$ref = new \IPS\Http\Url( ( isset( $_SERVER['HTTP_REFERER'] ) ? $_SERVER['HTTP_REFERER'] : '' ) );
 		}
 
 		return isset( $ref ) ? $ref->stripQueryString( 'csrfKey' ) : \IPS\Http\Url::internal( '' );
@@ -328,9 +334,9 @@ class _Login
 				/* Set any flags */
 				foreach ( array_keys( $this->flags ) as $k )
 				{
-					if ( isset( $values[ $k ] ) and $values[ $k ] )
+					if ( isset( $values[ $k ] ) )
 					{
-						$this->flags[ $k ] = TRUE;
+						$this->flags[ $k ] = $values[ $k ];
 					}
 				}