Error check incoming urlString for length, in addition to whether it is defined.
Error check incoming urlString for length, in addition to whether it is defined.

appnexus/mobile-sdk-ios,appnexus/mobile-sdk-ios,appnexus/mobile-sdk-ios,appnexus/mobile-sdk-ios,appnexus/mobile-sdk-ios,appnexus/mobile-sdk-ios