Fixed an exception on Blink
Fixed an exception on Blink

Joris-van-der-Wel/DOMPurify,voku/DOMPurify,Joris-van-der-Wel/DOMPurify,ConradIrwin/DOMPurify,neilj/DOMPurify,togusafish/t-ashula-_-DOMPurify,tdeekens/DOMPurify,tdeekens/DOMPurify,voku/DOMPurify,ConradIrwin/DOMPurify,Joris-van-der-Wel/DOMPurify,kwangkim/DOMPurify,neilj/DOMPurify,tdeekens/DOMPurify,neilj/DOMPurify,togusafish/t-ashula-_-DOMPurify,kwangkim/DOMPurify