crash if blockEl appears at a higher level in the DOM

[johanneswilm]

Assume that you have set

blockEl: 'div' (standard in Webkit)

with a document structure such as this:

A paragraph of the contents...

Another content paragraph...

Now in the function _deleteFromLeft, the parentBlock will potentially be assigned to an element outside of this.element in this line:

var parentBlock = ice.dom.parents(range.startContainer, this.blockEl)[0]

If the user now hits backspace at the start of a line, the container div will be deleted.

[delambo]

I think this is/was handled. It appears to be broken now. deleteFromLeft should detect if we go out of bounds and should do nothing in that case.

Filing this as a bug.