Uncaught error in Safari/iOS with HTML containing  

[jonpikum]

When the DOM element is serialized, if the serialized string contains " ", the Image throws an onerror event. (that is swallowed)

I suppose this is more of a Safari bug.

However, the issue can be avoided by doing the following:

// serialize the DOM node to a String
var serialized = new XMLSerializer().serializeToString(elem);
serialized.replace(/ /gi, '');

or perhaps another more efficient solution. In my specific use case I don't care if the non-breaking-space ends up breaking, but I can see where this might be an issue for others

EDIT: The above code didn't work, had to do this...

// collect all nodes within the element, copy the current style to the clone
Array.prototype.forEach.call(children, function(child, i) {
     copyCSS(child, origChildren[i]);
     child.innerHTML = child.innerHTML.replace(/ /gi, '');
});