ClippingNode is not mask my object

cocos2d-x JavaScript
1 
maske = new cc.ClippingNode();
        maske.setContentSize(400,400 );
        maske.setAnchorPoint(0, 0);
        maske.setPosition(0, 0);
        this.addChild(maske,5);
        
        var stencil = cc.DrawNode.create();
        var rectangle = [cc.p(0, 0),cc.p(maske.getContentSize().width, 0),
                         cc.p(maske.getContentSize().width, maske.getContentSize().height),
                         cc.p(0, maske.getContentSize().height)];
       
        var white = cc.color(1, 1, 1, 1);
        stencil.drawPoly(rectangle, white, 1, white);
        maske.setStencil(stencil);
        
        maske.setInverted(true);
        maske.setAlphaThreshold(0.5);
        maske.addChild(scrolView);

Is this code wrong? Because it is not mask my scrollView. All of scrollView is shown in screen although it must be 400x400. ScrollView’s contentSize is 1720*1080

2

Is there anybody know something about this?