Cannot read property 'tagName' of undefined

[UrVerySpecial]

Hi, first of all, I really appreciate for this module.

I found bug(maybe..).

1. insert image
2. click image
3. then, resizer is displayed
4. remove image by 'back space'
5. the resizer still remains
6. then 'TypeError: Cannot read property 'tagName' of undefined' error occurred

I founding solution, but if you already have, fix it please.

regards, kang

[UrVerySpecial]

ngpImageResizer.js

    function removeResizer(event) {
        if (!resizerContainer.parentNode) {
            return;
        }
        if (event && event.target && event.target.tagName === 'IMG') {
            return;
        }
        resizerContainer.style.display = 'none';
        lastVerticalCursorPosition = null;
    }

this code

if (event && event.target.tagName === 'IMG') 
{
    return;
}

to

if (event && event.target && event.target.tagName === 'IMG') {
    return;
}

will be fix, but it's not perfect solution. I think resizer have to hide when image is deleted.