Known issue - In some cases HTML Editor is writing a bad doctype tag
In rare cases, the HTML Editor instance is writing bad doctype code. it is writing the doctype code as:
$CKEditor_config["docType"] = "<\!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">";
when it should be:
$CKEditor_config["docType"] = "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">";