Uncaught TypeError: element.editor is undefined

hi

I am completely new to Trix and not a developer. I am using Trix in my new project so I am getting familiar with the it so I can customize it as I need. I was following the documentation here https://github.com/basecamp/trix I created simple [jsFiddle ](https://jsfiddle.net/radek/rLjv9g2d/2/)with exact HTML and javascript from documentation but I am getting the error https://github.com/basecamp/trix

Could someone please help me to fix that error?

What I want to achieve is to add programmmatically a non-editable block at current cursor position

Thank you
Radek

Start with the documentation example and the linked jsFiddle to reproduce the `element.editor is undefined` error. Trace the attempted programmatic insertion of a non-editable block at the current cursor position, then determine the supported behavior and verify the error is resolved or the limitation is documented.

Written by the indexing model from the issue text.