Migrated from RT, originally by Tomas Doran @bobtfish
$ perl -MHTML::Tagset -e'warn $HTML::Tagset::emptyElement{input}'
1 at -e line 1.
This appears entirely wrong. <input> tags can contain content as this is how you set previous values for them..
E.g. <input type="text" name="foo">initial value</input>