<script src="http://_.com/_.js"></script>
If you do not see the above line of text , then there is a problem.
If the forum software had not converted the line containing the HTML tags, etc. into this:
<script src="
http://_.com/_.js"></script>
then it would have been possible to attempt to run a js script from anywhere on the web in your browser.
"dummy" means 1. it's not a real test and/or 2. the poster