When developing the UWP hosted Web Apps for Windows 10 , you can define the URLs that your hosted web app can include and exclude .
Defining URLs in the UWP hosted Web apps
You generally define this in the app package manifest file by setting the Application Content URI Rules (ACURs) as shown below.
<uap:ApplicationContentUriRules>
<uap:Rule Type="include" Match="https://abundantcode.com/" />
<uap:Rule Type="exclude" Match="https://abundantcode.com/excludethispage.html" />
</uap:ApplicationContentUriRules>