I have code which is roughly as follows (I removed some parts, as they are irrelevant):
Library.focus = function(event) {
var element, paragraph;
element = event.srcElement;
paragraph = document.createElement("p");
paragraph.innerText = element.innerText;
element.parentNode.insertBefore(paragraph, element); // Line #1
element.parentNode.removeChild(element); // Line #2
};
The issue I have, is that the last call which I've numbered as line #2 throws this:
Uncaught Error: NOT_FOUND_ERR: DOM Exception 8
Note that the previous line #1 works fine, and inserts the paragraph node before it. Element is an existing element, and both element.parentNode and element.parentNode.removeChild exist as well.
I find this illogical, as element is by definition a child of its parentNode. Maybe StackOverflow will be able to help me out, here?
From mdn docs:
If child is actually not a child of the element node, the method throws an exception. This will also happen if child was in fact a child of element at the time of the call, but was removed by an event handler invoked in the course of trying to remove the element (eg, blur.)
I can reproduce this error in jsfiddle
Basically, you focus the element, which triggers a remove, which triggers a blur, which moves the element, which makes the element not the parent anymore.