Tumblr, get the current tag of the /tagged/nameoftag page

Question

I am making a HTML theme but I need to grab the currently viewed tag, is this possible?

I tried {Tag} but it doesn't show up

Answer 1

Javascript solution

<script type="text/javascript">
    var currentURL = document.URL;
    currentURL = currentURL.substring(currentURL.indexOf("tagged") + 7);    
    console.log('current', currentURL);
</script>