in JSDOMParser.js [1114:1130]
discardNextComment() {
if (this.match("--")) {
this.discardTo("-->");
} else {
var c = this.nextChar();
while (c !== ">") {
if (c === undefined) {
return null;
}
if (c === '"' || c === "'") {
this.readString(c);
}
c = this.nextChar();
}
}
return new Comment();
},