NSURLConnection error 1100 while running ionic app on iOS

Had the same issue and after quite a bit struggle and R&D this is what worked for me.

Seems like relative path is taken by IOS so in your src -> index.html please change this base href="/" to base href="./" (note dot at the beginning of the /)

this will load all the relevant js files (cordova.js, polyfill.js etc.)

the 1100 errors are files not being found due to absolute path.