Transport security has blocked a cleartext HTTP

Question

What setting do I need to put in my info.plist to enable HTTP mode as per the following error message?

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.

Assume that my domain is example.com.

Solution 1

If you are using Xcode 8.0+ and Swift 2.2+ or even Objective C:

If you want to allow HTTP connections to any site, you can use this keys:

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

If you know which domains you will connect to add:

<key>NSAppTransportSecurity</key>
<dict>
    <key>NSExceptionDomains</key>
    <dict>
        <key>example.com</key>
        <dict>
            <key>NSExceptionAllowsInsecureHTTPLoads</key>
            <true/>
            <key>NSIncludesSubdomains</key>
            <true/>
        </dict>
    </dict>
</dict>

Solution 2

Use NSAppTransportSecurity:

You have to set the NSAllowsArbitraryLoads key to YES under NSAppTransportSecurity dictionary in your info.plist file.

Solution 3

Here are the settings visually:

Solution 4

See the forum post Application Transport Security?.

Also the page Configuring App Transport Security Exceptions in iOS 9 and OSX 10.11.

For example, you can add a specific domain like:

<key>NSAppTransportSecurity</key>
<dict>
  <key>NSExceptionDomains</key>
  <dict>
    <key>example.com</key>
    <dict>
      <!--Include to allow subdomains-->
      <key>NSIncludesSubdomains</key>
      <true/>
      <!--Include to allow HTTP requests-->
      <key>NSTemporaryExceptionAllowsInsecureHTTPLoads</key>
      <true/>
      <!--Include to specify minimum TLS version-->
      <key>NSTemporaryExceptionMinimumTLSVersion</key>
      <string>TLSv1.1</string>
    </dict>
  </dict>
</dict>

The lazy option is:

<key>NSAppTransportSecurity</key>
<dict>
  <!--Include to allow all connections (DANGER)-->
  <key>NSAllowsArbitraryLoads</key>
      <true/>
</dict>

Note:

info.plist is an XML file so you can place this code more or less anywhere inside the file.

Solution 5

This was tested and was working on iOS 9 GM seed - this is the configuration to allow a specific domain to use HTTP instead of HTTPS:

<key>NSAppTransportSecurity</key>
<dict>
      <key>NSAllowsArbitraryLoads</key> 
      <false/>
       <key>NSExceptionDomains</key>
       <dict>
            <key>example.com</key> <!--Include your domain at this line -->
            <dict>
                <key>NSIncludesSubdomains</key>
                <true/>
                <key>NSTemporaryExceptionAllowsInsecureHTTPLoads</key>
                <true/>
                <key>NSTemporaryExceptionMinimumTLSVersion</key>
                <string>TLSv1.1</string>
            </dict>
       </dict>
</dict>

NSAllowsArbitraryLoads must be false, because it disallows all insecure connection, but the exceptions list allows connection to some domains without HTTPS.

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