In 1.6.16, the content in the editor can’t be saved to local storage, because the form and the submit button wants to work as forms and submit buttons naturally do. If #editUpdateBtn is given a type of ‘button’ rather than ‘submit’ all will be well, unless there’s something I’ve missed.
You may address this later in the course – but the downloadable code for this particular course unit should be updated, as right now it can’t work; I downloaded a fresh copy to check, and no go.
Thanks for this incredible course, it’s really well thought out and presented!