Stickyheaders error - onsite SharePoint 2013

Hi -

I've uploaded stickyheaders_3.2.0 to our SharePoint 2013 Site Assets page.  I then added the code:

<script src="//(ajax location)></script>

<script type="text/javascript"src="(script location)"></script>

to a Content editor Web Part on the page above the list I want to have fixed headers for.  I've tried multiple times with no luck.  I then tried editing the script and upon opening it I get an Windows Script Host error pop-up screen"

Script: (path)\stickyheaders_3.2.0

Line:39

Char: 2

Error "window" is undefined

Code:800A1391

Source: Microsoft JScript runtime error

Line 39 reads as follows:   (if(window.jQuery === undefined) {

Any help would be appreciated.

Thanks, Lee