I added the NsAppTransportSecurity as dictionary and added the key NsAllowArbitaryLoads exactly how everybody said but it does not work for me. I made
NsAppTransportSecurity
NsAllowArbitaryLoads
It should be done like:
NSAppTransportSecurity NSExceptionDomains your.domain.name.net NSExceptionAllowsInsecureHTTPLoads NSThirdPartyExceptionAllowsInsecureHTTPLoads