Dict failed when `document.createElement` method is overrided

[ajaxsys]

NG site: http://goo.gl/7ttj6
Problems: loader.js use document.createElement method to create script tag.
But the target NG site overrides the document.createElement method for customizing the native method(setAttribute method) of script element.

// TODO
if (document.createElement.toString().indexOf('[native code]')<0) {
    console.log('May not be supported because createElement method is Changed.');
    // Solution: call getNativeFunction in jquery.selection.js
}