<perl [script_path]> tag in WHM themes

Hello.

I have a problem embedding perl scripts in themes using the perl tag like stated in WHM's documentation:

But the script doesn't run and the perl tag can be seen in html source ( beside that the theme loads flawlessly into WHM ).

The script is a simple two-liner chmodded to 755.

Code:

#!/usr/bin/perl
print('Hello! World');

Is something in the perl script missing?

Plus is there a way to run a perl script as the user logged into WHM using this tag?

Thanks in advance,
Lucas.