Uncaught TypeError: Cannot read property 'rangePrototype' of null

[Amit Rai]

I am getting an exception when trying to invoke medium.

    new Medium({
      element: document.getElementById('main_middle')
    });

Uncaught TypeError: Cannot read property 'rangePrototype' of null

At the following line of Medium.js code:

rangy.rangePrototype.insertNodeAtEnd = function (node) {

Can anyone help me with this?

[Amit Rai]

Figured that I was missing a req library!

[busyhe]

+1