195,199c195,201
<     if (classes[i].substr(0, 8) == 'wysiwyg-') {
<       var parts = classes[i].split('-');
<       var value = parts.slice(2).join('-');
<       params[parts[1]] = value;
<     }
---
> 		if(typeof(classes[i]) == 'string'){
> 			if (classes[i].substr(0, 8) == 'wysiwyg-') {
> 				var parts = classes[i].split('-');
> 				var value = parts.slice(2).join('-');
> 				params[parts[1]] = value;
> 			}
> 		}