dns address could not be found mac emulator

When checking by hand through Safari in the simulator, I tried a bunch of different things that all should reach the same development server. local ATS exception described by Quinn in another thread, but a request to that. I'm going through an older app, making changes to debug on Xcode 7.1 and iOS 9, and in the process of figuring out the correct way to add an exception for ATS in development mode (where I can't easily use HTTPS), I've found that the simulator is unable to connect to the local Mac in surprising ways. My app behaves this way when ATS is disabled.Īre you able to reproduce this problem? Am I missing something?

This does not appear to be related to App Transport Security.

Searching the web for the UUID 28CC4371-F3F9-3578-9436-310B23A2C638 yields only a handful of job posts.

I'm using Simulator Version 9.0 (SimulatorApp-620 CoreSimulator-179).

Simulated Mobile Safari is able to connect to another machine with an URL like.

Simulated Mobile Safari is able to connect using the URL (I need it to work with the Bonjour provided hostname, though).

Real Mobile Safari (on an iOS device on the same network) is able to connect using the URL.

Desktop Safari is able to connect using the URL.

Simulated Mobile Safari displays 'Safari cannot open the page because it could not connect to the server.'Īdditionally, the following message appears in the Console each time I try to load the URL:Īssertiond: assertion failed: 15A284 13A340: assertiond + 13207 : 0x1

Open Safari inside the Simulator, enter URL:.

Open Terminal, start a web server: python -m SimpleHTTPServer 8000.

I am able to reproduce this issue using Simulated Mobile Safari and the web server that comes with the stock Python in OS X. Since upgrading to Xcode 7 on El Capitan, I am unable to connect from the Simulator to a web server running on the same Mac. For development and testing, we use Bonjour to find servers on the local network, and during sign-in the app offers to connect to one of them instead of the production site.

I am working on an iOS app that connects to a web service.

Dns address could not be found mac emulator