showFooter IE8 - Object expected error

Using IE8 and setting showFooter = true; cause a javascript error.

Line 144 on:

var calculateObjectValue = function (self, name, args, defaultValue) {
        var func = name;

        if (typeof name === 'string') {
            // support obj.func1.func2
            var names = name.split('.');

            if (names.length > 1) {
                func = window;
                $.each(names, function (i, f) {
                    func = func[f];
                });
            } else {
                func = window[name];
            }
        }
        if (typeof func === 'object') {
            return func;
        } 

        // ERROR 
        if (typeof func === 'function') {
            
           // ERROR HERE
            return func.apply(self, args);   
        }


        if (!func && typeof name === 'string' && sprintf.apply(this, [name].concat(args))) {
            return sprintf.apply(this, [name].concat(args));
        }
        return defaultValue;
    };

This happends because apply(); function expects second parameter to be an array but undefined is given.

I solved this issue adding an extra control to if statement:

if (typeof func === 'function' && args !== undefined) {
       return func.apply(self, args);
}

[wenzhixin]

Thanks! Fixed this in develop branch

[vveliu]

@wenzhixin just tested, this works too.