You don’t seem to realize that your post only applies to xhtml doctypes and your concern is extremely outdated to boot. Use an html parser to parse html. You

You don’t seem to realize that your post only applies to xhtml doctypes and your concern is extremely outdated to boot. Use an html parser to parse html. You also are extremely off on your estimation of how common xhtml is on the web since you thought this would be a useful PSA and you seem unaware of what <!doctype html> means here, as it specifically is not xml. I’m not tying to be mean, but you came in with guns blazing with weird advice and it seems very mislead.