<!-- <script src="jquery.js"></script> -->
The underlying problem is inside the HTML syntax file and it is actually an easy fix.
We need to edit the
HTML.tmLanguage file that is located in
browse packages →
Open it up and look for a line that looks like the following. It should be around line 286.
Replace it with this:
Save. You should now be able to properly toggle comment out script tags in Sublime Text!