Unable to contact the server on Android Webview

[Andrea Azzarà]

Hi, I'm writing to report an issue we're facing using Recaptcha in an Android hybrid application (Ionic/Cordova).

Since yesterday we're getting an 'invalid key for the domain' error (only on Android platforms, it works fine on IOS/Web). I attach a couple of screenshot of the errors we see. The problem happens also with domain validation disabled on recaptcha console. What we tried without success:

• Enable/disable domain name validation through Recaptcha console (using the package name of the Android app)
• Set CSP tags in our application as described in https://developers.google.com/recaptcha/docs/faq#im-using-content-security-policy-csp-on-my-website-how-can-i-configure-it-to-work-with-recaptcha
• Set loose permissions for cordova whitelist plugin 
• Generate a new Recaptcha2 Key
• Generate a new Android key enabling/disabling package name verification for com.domotz.violet
• Use a different webview from the Android default (Crosswalk browser)
• Use the testing key that is suggested for automated testing

For all those scenarios the error is always the same (Invalid key for the domain). From the developers console it seems that the communications with Recaptcha servers happens with no issues. No errors in console.

Do you have any idea on possible solutions?

thanks

Andrea