Accessing context variables on other pages

So, I am working on building my first Sharepoint App.  The app has 2 pages. The first page is accessible by everyone, and the 2nd page is accessible to managers only. Users submit to HR prospective recruits. The first page stores the submission in a list in the host_web.  When I load the 2nd page, I need to pull that data.  Likewise, one of the first things I need to do is to get the current and host context.  However, I don't seem to be able to do this on the 2nd page.  It worked perfectly well on the first page.  Page 2 always gets hung up here:

hostweburl = decodeURIComponent(getQueryStringParameter('SPHostUrl'));
appweburl = decodeURIComponent(getQueryStringParameter('SPAppWebUrl'));