Where is the empty script coming from?

Question

Drupal

</body>For the first time I see such a glitch in Drupal 7. In the basement, an empty script appeared in front of the tag <script src=""></script>. It looks like it is generated by php. I looked through all the templates - there is nothing like it. Where else to look? Maybe it's the remains of some module? But what? Has anyone come across?

Answer 1

codepen.io/Geyan/pen/OpwMaX

Answer 2

z-index, position?