reCaptcha very hard when using ChromiumBrowser (dynamic challenges each time / error even the captcha is correct)

[Younes Zeboudj]

Hello,

I am developing an application which has a browser embedded in it, i used ChromiumWebBrowser from CefSharp project,

The problem is that each time i enter a website that has a reCaptcha verification i take a very long time to pass the challenge:

1. The first problem is that the challenge type is "dynamic", when i click a picture it is not selected but another picture appear instead, so i have sometimes more than 9 pictures to click plus the time that a picture take to disappear and get replaced.Second problem is that i click the right pictures but it tells me "Incorrect. please try again.", it occurs many times, so i have to take another challenge even i passed the last one.
2. I tried to debug my browser requests and i managed to have the same requests as Google Chrome, same User-Agent as well, and i installed a proxy to compare the requests sent by Google Chrome and those sent by my browser, they are identical, same headers present except the values generated by the API.
   

The strange thing is that using Google Chrome browser gives easy reCaptcha challenges even with incognito mode, but with ChromiumBrowser in the same computer and same time gives always hard challenges, what make reCaptcha think that the challenge must be hard for my browser ?! isn't Google Chrome based similar to Chromium ?

i passed a week tracking reCaptcha script behavior and debugging my application, it took a long time, i have been blocked a week ago.

Any solution or suggestion.

Thanks in advance.

[鼎王]

Hello, I have encountered the same problem. How do you solve it?