Fiddler doesn't work on iphone simulator at xcode8.3, can't interception HTTPS anymore. But it works well at Xcode before version. I already install the CertMaker for iOS and Android, and follow up all the steps as this http://docs.telerik.com/fiddler/Configure-Fiddler/Tasks/ConfigureForiOS. This issue is not special case, my colleague also meet this issue. Can you take time to look this issue? This is very important for us. Thanks you guys to develop so much wonderful fiddler tool !