in JSDOMParser.js [762:774]
set innerHTML(html) {
var parser = new JSDOMParser();
var node = parser.parse(html);
var i;
for (i = this.childNodes.length; --i >= 0; ) {
this.childNodes[i].parentNode = null;
}
this.childNodes = node.childNodes;
this.children = node.children;
for (i = this.childNodes.length; --i >= 0; ) {
this.childNodes[i].parentNode = this;
}
},