http://developers.de/blogs/damir_dobric/archive/2015/08/10/why-edge-spartan-does-not-open-local-addresses.aspxThe Microsoft Edge Browser cannot open by default any local address. This is because Edge is an app and all apps on Windows 8.0+ including Windows 10 are not permitted to access locally hosted addresses. Fortunately there is a way to enable so calledenCommunityServer 2008 SP1 (Build: 30619.63)