System.InvalidOperationException: Reponse is emptry.

[edika99]

RecaptchaVerificationHelper.txt

I receive the exception if the recaptcha is not filled at all.
I'm using v2 recaptcha.
The excpetion is thrown on

RecaptchaVerificationResult result = recaptcha1.Verify();
at line 104 of RecaptchaVerificationHelper you have to handle the empty response not throwing an exception an retiurning a failed verification.

if (string.IsNullOrEmpty(Response)) { throw new InvalidOperationException("Reponse is emptry."); }
Not filling the recaptcha is equivalent to a failed verification not to an exception.

Attached a working version of RecaptchaVerificationHelper.cs

[sfusaro]

I am getting the same error.
RecaptchaNet 3.1.0
ApiVersion: 2
Framework: 4.6
Tested with test and productive keys both get the same validation error. When you click on "I'm not a robot" the Verify() method returns OK with the parameters success = true.
If the checkbox is not clicked, the exception occurs: "Reponse is emptry."
Is there a way to solve this?