[Htmlunit-user] executing javascript which itself is dynamically loaded

[Alamgir F. <afa...@ho...>]

our site (test) is
http://appointment-service.com/cmt2_lefoodtruck
(ignore the names, they have no meaning)

In order to optimize loading on a mobile phone, we download the bulk of they javascript and css dynamically, via a small javascript function. I am not sure if this is the problem or something else is wrong, but when I try to load this site using HtmlUnit, it appears that the javascript is not being executed. 
(java excerpt)
            final WebClient webClient = new WebClient(BrowserVersion.INTERNET_EXPLORER_11);
            webClient.waitForBackgroundJavaScript(40000);
            HtmlPage page = webClient.getPage("http://appointment-service.com/cmt2_lefoodtruck");
            System.out.println(page.asXml());
            webClient.close();

What are our options?  We are trying to create html snapshots for Google indexing. 

Thanks