NSURLSession/NSURLConnection HTTP load failed on iOS 9

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Found solution:

In iOS9, ATS enforces best practices during network calls, including the use of HTTPS.

From Apple documentation:

ATS prevents accidental disclosure, provides secure default behavior, and is easy to adopt. You should adopt ATS as soon as possible, regardless of whether you’re creating a new app or updating an existing one. If you’re developing a new app, you should use HTTPS exclusively. If you have an existing app, you should use HTTPS as much as you can right now, and create a plan for migrating the rest of your app as soon as possible.

In beta 1, currently there is no way to define this in info.plist. Solution is to add it manually:

<key>NSAppTransportSecurity</key>
<dict>
    <key>NSAllowsArbitraryLoads</key>
    <true/>
</dict>

enter image description here

Update1: This is a temporary workaround until you’re ready to adopt iOS9 ATS support.

Update2: For more details please refer following link:
http://ste.vn/2015/06/10/configuring-app-transport-security-ios-9-osx-10-11/

Update3: If you are trying to connect to a host (YOURHOST.COM) that only has TLS 1.0

Add these to your app’s Info.plist

<key>NSAppTransportSecurity</key>
<dict>
    <key>NSExceptionDomains</key>
    <dict>
        <key>YOURHOST.COM</key>
        <dict>
            <key>NSIncludesSubdomains</key>
            <true/>
            <key>NSTemporaryExceptionAllowsInsecureHTTPLoads</key>
            <true/>
            <key>NSTemporaryExceptionMinimumTLSVersion</key>
            <string>1.0</string>
            <key>NSTemporaryExceptionRequiresForwardSecrecy</key>
            <false/>
        </dict>
    </dict>
</dict>

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