testingChallenge property Null safety

String? testingChallenge
read / write

For challenge-based keys only (CHECKBOX, INVISIBLE), all challenge requests for this site will return nocaptcha if NOCAPTCHA, or an unsolvable challenge if CHALLENGE. Possible string values are:

  • "TESTING_CHALLENGE_UNSPECIFIED" : Perform the normal risk analysis and return either nocaptcha or a challenge depending on risk and trust factors.
  • "NOCAPTCHA" : Challenge requests for this key always return a nocaptcha, which does not require a solution.
  • "UNSOLVABLE_CHALLENGE" : Challenge requests for this key always return an unsolvable challenge.

Implementation

core.String? testingChallenge;