Worse, actually: <script> content is only terminated by </script> and not other end-element tags, but <!-- --> comments within script content are treated as Jav

Worse, actually: <script> content is only terminated by </script> and not other end-element tags, but <!-- --> comments within script content are treated as JavaScript comments [1] (though I'm not aware of template approaches that need to compose the content of script elements). [1] http://sgmljs.net/docs/html5.html#script-data http://sgmljs.net/docs/html5.html#script-data