This plist entry works for me -
<key>NSAppTransportSecurity</key> <dict> <key>NSExceptionDomains</key> <dict> <key>files.parsetfss.com</key> <dict> <key>NSIncludeSubdomains</key> <true/> <key>NSExceptionAllowsInsecureHTTPLoads</key> <true/> </dict> </dict> </dict>
You have the NSIncludesSubdomains key, and not the NSIncludeSubdomains - extra s between "Include" and "Subdomains"
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