ATS definitely applies to Corona-built apps (including their plugins) for iOS 9.
We’ll have a guide soon. For now, you can edit your build.settings to inject the right settings into the generated Info.plist.
Apple has a list of settings here: https://developer.apple.com/library/prerelease/ios/technotes/App-Transport-Security-Technote/
This will let you configure the specific domains you need to exclude:
[lua]settings =
{
iphone =
{
plist =
{
NSAppTransportSecurity =
{
NSExceptionDomains =
{
[“your.domain.name”] =
{
– Settings here for this domain
},
},
},
},
},
}[/lua]
And this will let you exclude everything. Apple doesn’t recommend this.
[lua]settings =
{
iphone =
{
plist =
{
NSAppTransportSecurity =
{
NSAllowsArbitraryLoads = true,
},
},
},
}[/lua]