Apple iOS 10.x requires web maps and web apps be called using https for the my location widget to access the devices location services. This applies to items in the web map and app including the organizations shared logo. You can change the web apps URL to https in the Web Mapping Application Settings section of the Settings tab in the items Detail page. The shared logo details page however does not have an option to update the URL. The my location widget will not work on all web maps and applications using the logo on Apple devices. There is a work around, you can update the items JSON in ago-assistant to add the 's' to the items URL as shown in the screenshot.