This issue only needs to be tested in 1 device. Official app In a browser of a desktop device, generate 2 QR codes (you can use this tool ): A URL with a custom URL scheme different than the one in the app (e.g. 'fakescheme:// http://moodle.org'). A URL to a certain moodle site: e.g.  http://moodle.org In the app, click to add a new site and click to scan a QR code. Scan the QR of the point 1.1. Check that the app displays an error saying that the URL isn't meant to be opened in this app. Scan the QR of the point 1.2. Check that you're sent to credentials. Branded app with a fixed site URL Using a branded app that has a fixed URL set and displays the scan QR button in the credentials page, click to add a site and click the scan QR button. Scan the code of the point 1.1 of the previous section. Check that the app displays an error saying that the URL isn't meant to be opened in this app. Now scan the code of the point 1.2 of the previous section. Check that the app displays an error saying that it isn't a valid login URL.