Unable to navigate to: '%1!s!'. An iframe attempted to navigate to a URI that is not included in the ApplicationContentUriRules ...

Unable to navigate to: '%1!s!'. An iframe attempted to navigate to a URI that is not included in the ApplicationContentUriRules for this app. Use a x-ms-webview element to view the URI instead, or add the URI to the ApplicationContentUriRules section of the package manifest so that the iframe can navigate to it. (In Visual Studio, add this URI to the Content URIs tab of the Manifest Designer.)