lib/Ext/app/History.js
function() {
        var actions = this.getActions(),
            previousAction = actions[actions.length - 2];

        if (previousAction) {
            actions.pop();

            previousAction.getController().getApplication().redirectTo(previousAction.getUrl());
        }
        else {
            actions[actions.length - 1].getController().getApplication().redirectTo('');
        }
    }
function() {
        var actions = this.getActions(),
            previousAction = actions[actions.length - 2];

        if (previousAction) {
            actions.pop();

            previousAction.getController().getApplication().redirectTo(previousAction.getUrl());
        }
        else {
            actions[actions.length - 1].getController().getApplication().redirectTo('');
        }
    }
function ( ) { var actions = this . getActions ( ) , previousAction = actions [ actions . length - 2 ] ; if ( previousAction ) { actions . pop ( ) ; previousAction . getController ( ) . getApplication ( ) . redirectTo ( previousAction . getUrl ( ) ) ; } else { actions [ actions . length - 1 ] . getController ( ) . getApplication ( ) . redirectTo ( '' ) ; } }
Navigate to the previous active action. This changes the page url.
Navigate to the previous active action . This changes the page url .