Gigya服务在Flex4中无法正常运行，尽管在Flex3中可以正常运行。

<?xml version=\"1.0\" encoding=\"utf-8\"?>
<mx:Application xmlns:flexlib_controls=\"flexlib.controls.*\" 
                xmlns:s=\"library://ns.adobe.com/flex/spark\" xmlns:fx=\"http://ns.adobe.com/mxml/2009\"
                xmlns:mx=\"library://ns.adobe.com/flex/mx\"
                verticalAlign=\"middle\" horizontalAlign=\"center\" width=\"400\" height=\"150\" layout=\"absolute\"
                backgroundColor=\"#FFFFFF\" borderStyle=\"none\" color=\"#FFFFFF\" backgroundGradientAlphas=\"[0,0]\"
                backgroundAlpha=\"0\" applicationComplete=\"init()\"
                verticalScrollPolicy=\"off\" horizontalScrollPolicy=\"off\" fontFamily=\"Arial\" fontSize=\"12\">       

    <fx:Script>
        <![CDATA[                       
            import c7.config.ServerConfig;

            import com.adobe.serialization.json.JSON;
            import com.hurlant.crypto.*;
            import com.hurlant.crypto.hash.HMAC;
            import com.hurlant.crypto.symmetric.ICipher;
            import com.hurlant.util.Base64;
            import com.hurlant.util.Hex;

            import flash.net.navigateToURL;

            import mx.controls.Alert;
            import mx.core.Application;

            import mx.rpc.events.ResultEvent;

            import spark.components.supportClasses.ListBase;

            private var loginEventObj:Object = new Object();
            private var currentUID:String = new String();           
            private var userInfo:UserInfo = new UserInfo();
            public var currentResult:ByteArray;
            public var secretKey:String = ServerConfig.get_gigya_key().secret_key;          

            // Define a configuration object. Insert your APIKey below: 
            private var conf:Object = { 
                APIKey: ServerConfig.get_gigya_key().api_key 
            };


            [Bindable]
            private static var RPC_URL:String = ServerConfig.get_rpc_base_url();            

            [Bindable]
            private var system_message:String = null;

            private var newUserFlag:Boolean = true; // lets assume the user is new first.

            private function init():void
            {               
                initSocialService();
            }


            private function initSocialService():void
            {               
                Security.allowDomain(\"cdn.gigya.com\");
                Security.allowInsecureDomain(\"cdn.gigya.com\");

                // Initialize the \"mcRoot\" attribute of the conf object - should refer to the root of the flash container. 
                this.conf.mcRoot=this.root; 

                // Load Social service 
                // Create the load-parameters object 
                var loadParams:Object = { 
                    services:\'socialize\',
                    callback:onServiceInit 
                } 

                // Load the service 
                gigya.load(conf,loadParams);
            }

            // Wait for the load to complete and handle failures/success 
            private function onServiceInit(response:*):void 
            { 
                if (response.hadError)          
                    throw new Error(\'Failed to init gigya service\');                
                else 
                { 
                    gigya.services.socialize.addEventHandlers(conf, {onLogin:onLoginHandler});
                    showLoginUI(); 
                } 
            } 

            private function showLoginUI():void 
            {               
                // Define parameters object: 
                var params:Object = {width: 350,
                    enabledProviders: \"facebook, twitter, yahoo, messenger, google, linkedin, myspace, aol, openid\",
                    height: 80,
                    lastLoginIndication: \"welcome\",                     
                    showTermsLink: false,
                    showWhatsThis: true,                        
                    hideGigyaLink: true,
                    container: loginCanvas, // embed component inside loginCanvas container
                    UIConfig: \'<config><body><background frame-color=\"#BFBFBF\" background-color=\"#FFFFFF\" corner-roundness=\"5;5;5;5\"></background></body></config>\',
                    cid: \'login page\'}; 
                gigya.services.socialize.showLoginUI(conf, params);
            }

            // Note: the actual signature calculation implementation should be on server side 
            private function verifyTheSignature(UID:String, timestamp:String, signature:String): void  
            { 
                //trace(\'Your user ID: \' + UID + \'\\n timestamp: \' + timestamp + \'\\n signature: \' + signature); 
            }                                                       
        ]]>
    </fx:Script>
    <fx:Style>
        .textInput{
            fontFamily: Arial; 
            color: #333333;                  
            fontSize: 14;
            paddingTop: 2;
            paddingBottom: 2;
            paddingRight: 2;
            paddingLeft: 2;
            cornerRadius: 5;
            borderStyle: solid;             
        }
        .smallText{
            fontSize: 10;
            fontFamily: Arial;
            color: #4483af;         
        }
    </fx:Style>
    <mx:ViewStack id=\"vs_main\" width=\"100%\" height=\"100%\" top=\"0\" left=\"0\" borderStyle=\"none\" paddingLeft=\"0\" paddingTop=\"0\" paddingRight=\"0\"
                  paddingBottom=\"0\" backgroundAlpha=\"0\" creationPolicy=\"all\" verticalScrollPolicy=\"off\" horizontalScrollPolicy=\"off\">
        <s:NavigatorContent id=\"bx_login\"  width=\"100%\" height=\"100%\">
            <s:Group id=\"bx_login1\" width=\"100%\" height=\"100%\">
                <s:Label id=\"both_required_error_lbl\" text=\"Both username and password are required\" top=\"2\" left=\"2\" color=\"#ff0000\" visible=\"false\"/>
                <s:Label id=\"invalid_error_lbl\" text=\"{this.system_message}\" top=\"2\" left=\"2\" color=\"#ff0000\" visible=\"false\"/>
                <flexlib_controls:PromptingTextInput prompt=\"username\" width=\"150\" maxChars=\"100\" id=\"txt_username\" top=\"22\" left=\"2\"
                                                     color=\"#000000\" enter=\"authenticate(txt_username.text, txt_password.text)\" styleName=\"textInput\"/>
                <s:Label text=\"forgot username\" styleName=\"smallText\" useHandCursor=\"true\" mouseChildren=\"false\" buttonMode=\"true\"
                         click=\"{vs_main.selectedChild= bx_forgot_username;}\" top=\"49\" left=\"2\"/>
                <flexlib_controls:PromptingTextInput prompt=\"password\" width=\"150\" maxChars=\"100\" id=\"txt_password\"  styleName=\"textInput\" top=\"22\" left=\"160\"
                                                     color=\"#000000\" displayAsPassword=\"true\" enter=\"authenticate(txt_username.text, txt_password.text)\"/>
                <s:Label text=\"forgot password\" styleName=\"smallText\" useHandCursor=\"true\" mouseChildren=\"false\" buttonMode=\"true\" left=\"160\" top=\"49\"
                         click=\"{vs_main.selectedChild=bx_forgot_password;}\"/>          
                <s:Button id=\"btn_login\" label=\"Submit\" click=\"authenticate(txt_username.text, txt_password.text)\" fontFamily=\"Arial\" fontSize=\"12\"
                          toolTip=\"Login using your existing account\" color=\"#000000\" top=\"22\" right=\"2\"/>
                <s:Group id=\"loginCanvas\" height=\"80\" width=\"100%\" left=\"2\" bottom=\"2\"/>
            </s:Group>  
        </s:NavigatorContent>       
    </mx:ViewStack>
</mx:Application>