I have a form copied from another list that I'm trying to modify.  The previous developer uses the Javascript include file.  I modified the javascript but it wasn't executing so I stripped out all of the javascript except for the following:

NWF$(document).ready(function(){

    console.log('Start custom Javascript');

});

By all that I have read, this should execute once the form has rendered.  When I look at the console, nothing is there.  There aren't any errors.  When I open the form in Chrome DevTools and look at the sources, the javascript file isn't listed as being loaded.

I have checked the following:

The file is named pimform.dave.js and it is present in the siteassets folder in my on-prem SharePoint 2013 site.  I have full admin permissions on the site.  The file is present and can be downloaded by putting the URL in the browser address bar.

On the form settings, I have the following listed under Advanced | Custom Javascript Includes

http://spdev/sales/siteassets/pimform.dave.js

which is the correct URL.

I tested the code, by placing the javascript directly in the form using the Custom Javascript box.

What am I doing wrong? Searching this community site doesn't provide any hints. It seems like it should be easier than this.

Thanks in advance.