App Transport Security has blocked a cleartext HTTP (http://) resource load since it is insecure

Question

I need to access a HTTP request through amazonaws.com, which works on android but Xcode gives this error above "App Transport Security has blocked..."
I found that I need to modify the info.plist to add exceptions: https://stackoverflow.com/questions/31254725/transport-security-has-blocked-a-cleartext-http

And I found an example here of how it's possible to modify info.plist with post-process build: https://forum.unity.com/threads/how-can-you-add-items-to-the-xcode-project-targets-info-plist-using-the-xcodeapi.330574/

But can't find any examples of how I would construct the nested Dictionaries to make it happen.

Answer 1

I couldn't find any documentation on how to use these methods, but did get it working through trial and error.

Hopefully this will help others in the future.

 public class AllowHTTPSupportCodes : MonoBehaviour 
 {
     [PostProcessBuild]
     public static void OnPostprocessBuild(BuildTarget buildTarget, string pathToBuiltProject) 
     {
         if (buildTarget == BuildTarget.iOS) {
 
             // Get plist
             string plistPath = pathToBuiltProject + "/Info.plist";
             PlistDocument plist = new PlistDocument();
             plist.ReadFromString(File.ReadAllText(plistPath));
 
             PlistElementDict allowsDict = plist.root.CreateDict("NSAppTransportSecurity");
 
             allowsDict.SetBoolean("NSAllowsArbitraryLoads", true);
 
             PlistElementDict exceptionsDict = allowsDict.CreateDict("NSExceptionDomains");
 
             PlistElementDict domainDict = exceptionsDict.CreateDict("amazonaws.com");
 
             domainDict.SetBoolean("NSExceptionAllowsInsecureHTTPLoads", true);
             domainDict.SetBoolean("NSIncludesSubdomains", true);
 
             // Write to file
             File.WriteAllText(plistPath, plist.WriteToString());
         }
     }
 }

App Transport Security has blocked a cleartext HTTP (http://) resource load since it is insecure

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