Xcode 7 (iOS 9) で外部通信がエラーになる

2015-09-15 21:33:04.489 xxxxx-Keyboard[1132:13790] ***storageTaskManagerExistsWithIdentifier:withIdentifier failed: Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service named com.apple.nsurlstorage-cache was invalidated." UserInfo={NSDebugDescription=The connection to service named com.apple.nsurlstorage-cache was invalidated.}; {
NSDebugDescription = "The connection to service named com.apple.nsurlstorage-cache was invalidated.";
}
2015-09-15 21:33:04.532 xxxxx-Keyboard[1132:13790] ***cachedResponseDictionaryForRequest:key:handler failed: Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service named com.apple.nsurlstorage-cache was invalidated." UserInfo={NSDebugDescription=The connection to service named com.apple.nsurlstorage-cache was invalidated.}; {
NSDebugDescription = "The connection to service named com.apple.nsurlstorage-cache was invalidated.";
}
fatal error: 'try!' expression unexpectedly raised an error: Error Domain=NSURLErrorDomain Code=-1003 "指定されたホスト名のサーバが見つかりませんでした。" UserInfo={NSUnderlyingError=0x14109acc0 {Error Domain=kCFErrorDomainCFNetwork Code=-1003 "指定されたホスト名のサーバが見つかりませんでした。" UserInfo={NSErrorFailingURLStringKey=http://www.social-ime.com/api/?string=%E3%81%84, NSErrorFailingURLKey=http://www.social-ime.com/api/?string=%E3%81%84, _kCFStreamErrorCodeKey=-72000, _kCFStreamErrorDomainKey=10, NSLocalizedDescription=指定されたホスト名のサーバが見つかりませんでした。}}, NSErrorFailingURLStringKey=http://www.social-ime.com/api/?string=%E3%81%84, NSErrorFailingURLKey=http://www.social-ime.com/api/?string=%E3%81%84, _kCFStreamErrorDomainKey=10, _kCFStreamErrorCodeKey=-72000, NSLocalizedDescription=指定されたホスト名のサーバが見つかりませんでした。}: file /Library/Caches/com.apple.xbs/Sources/swiftlang/swiftlang-700.0.59/src/swift/stdlib/public/core/ErrorType.swift, line 50
(lldb)

シミュレータで通信（通信可能に設定）して、得た結果をモニターできるのに、実機はエラーになります。

http://www.social-ime.com/api/?string=%E3%81%84　も、単体で実行すれば返答があります。サーバーがないことはありません。
HTTP通信もシミュレータでは、動きます。

こんなのも関係あるでしょうか？

2015-09-15 21:51:30.092 xxxxx-Keyboard[1455:22588] XPC unexpectedly invalidated
2015-09-15 21:51:30.094 xxxxx-Keyboard[1455:22588] __27-[_UIRemoteKeyboards proxy]_block_invoke Failed to access remote service: Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service named com.apple.UIKit.KeyboardManagement.hosted was invalidated." UserInfo={NSDebugDescription=The connection to service named com.apple.UIKit.KeyboardManagement.hosted was invalidated.}

Optional(〈xxxxx_Keyboard.KeyboardViewController: 0x146809800〉)
Optional(〈xxxxx_Keyboard.KeyboardViewController: 0x146809800〉)


2015-09-15 23:07:41.237 xxxxx-Keyboard[2694:47752] ***storageTaskManagerExistsWithIdentifier:withIdentifier failed: Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service named com.apple.nsurlstorage-cache was invalidated." UserInfo={NSDebugDescription=The connection to service named com.apple.nsurlstorage-cache was invalidated.}; {
NSDebugDescription = "The connection to service named com.apple.nsurlstorage-cache was invalidated.";
}
2015-09-15 23:07:41.301 xxxxx-Keyboard[2694:47752] ***cachedResponseDictionaryForRequest:key:handler failed: Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service named com.apple.nsurlstorage-cache was invalidated." UserInfo={NSDebugDescription=The connection to service named com.apple.nsurlstorage-cache was invalidated.}; {
NSDebugDescription = "The connection to service named com.apple.nsurlstorage-cache was invalidated.";
}
2015-09-15 23:07:41.305 xxxxx-Keyboard[2694:47800] App Transport Security has blocked a cleartext HTTP (http://) resource load since it is insecure. Temporary exceptions can be configured via your app's Info.plist file.
fatal error: 'try!' expression unexpectedly raised an error: Error Domain=NSURLErrorDomain Code=-1022 "The resource could not be loaded because the App Transport Security policy requires the use of a secure connection." UserInfo={NSUnderlyingError=0x13906c6f0 {Error Domain=kCFErrorDomainCFNetwork Code=-1022 "The resource could not be loaded because the App Transport Security policy requires the use of a secure connection." UserInfo={NSErrorFailingURLStringKey=http://www.social-ime.com/api/?string=%E3%81%84, NSLocalizedDescription=The resource could not be loaded because the App Transport Security policy requires the use of a secure connection., NSErrorFailingURLKey=http://www.social-ime.com/api/?string=%E3%81%84}}, NSErrorFailingURLStringKey=http://www.social-ime.com/api/?string=%E3%81%84, NSErrorFailingURLKey=http://www.social-ime.com/api/?string=%E3%81%84, NSLocalizedDescription=The resource could not be loaded because the App Transport Security policy requires the use of a secure connection.}: file /Library/Caches/com.apple.xbs/Sources/swiftlang/swiftlang-700.0.59/src/swift/stdlib/public/core/ErrorType.swift, line 50
(lldb) 

キーボード用のinfo.plistで追加したいるもの。

〈key〉NSAppTransportSecurity〈/key〉
〈dict〉
    〈key〉NSExceptionDomains〈/key〉
    〈dict〉
        〈key〉www.social-ime.com〈/key〉
        〈dict〉
            〈key〉NSTemporaryExceptionAllowsInsecureHTTPLoads〈/key〉
            〈true/〉
        〈/dict〉
    〈/dict〉
〈/dict〉

確認すべきところを教えていただけないでしょうか？