Adding PDF functionality,

I am trying to initiate the Kendo PDF Export as per https://demos.telerik.com/kendo-ui/pdf-export/page-layout but if I add the following required header parts to the head of my page then Wappler removes the third .js file.

    <title></title>
    <link rel="stylesheet" href="https://kendo.cdn.telerik.com/2019.3.1023/styles/kendo.bootstrap-v4.min.css" />

    <script src="https://kendo.cdn.telerik.com/2019.3.1023/js/jquery.min.js"></script>
    <script src="https://kendo.cdn.telerik.com/2019.3.1023/js/jszip.min.js"></script>
    <script src="https://kendo.cdn.telerik.com/2019.3.1023/js/kendo.all.min.js"></script>

I am using SPA pages and if I then take the above code and add it to the top of the SPA page instead, Wappler does the same thing.

How can I get this to work?

I have copied the above code and saved it as a basic html page without any Wappler coding and it works fine.

CORRECTION!
I have just been playing with this again, and now it is not removing the .js file, but it still does not work. Any ideas?