[Python] Solving Arkoselabs FunCaptcha using 2captcha api. (Captcha incorrect)

I'm experiencing issues with solving a CAPTCHA using the 2Captcha service. Here’s a breakdown of my situation:

Expected Outcome:
I expected the CAPTCHA to be solved correctly each time, resulting in successful validation after submitting the CAPTCHA token.

Actual Outcome:
Despite following the correct procedure, I receive an incorrect response where one answer is always wrong while the rest are correct. To resolve the issue, I contacted 2Captcha support, and they recommended blocking the CAPTCHA rendering on my end to avoid incorrect data parameters. I implemented their advice, but the problem still persists.

Technical Details:
I am using the following method to solve the CAPTCHA:

def solve_captcha(public_key, page_url, blob,driver):
time.sleep(20)
task_payload = {
"clientKey": APIKEY,
"task": {
"type": "FunCaptchaTaskProxyless",
"websiteURL": page_url,
"websitePublicKey": public_key,
"funcaptchaApiJSSubdomain": "roblox-api.arkoselabs.com",
"userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36",
"data": {"blob": blob}
}
}

try:
response = requests.post(f"{APIURL_2CAPTCHA}/createTask", json=task_payload).json()
if response.get("errorId") != 0:
print(f"Error creating task: {response}")
return None

task_id = response.get("taskId")
print(f"Task created successfully. Task ID: {task_id}")

for attempt in range(30):
print(f"Checking task status... Attempt {attempt + 1}/30")
time.sleep(10)
result = requests.post(f"{APIURL_2CAPTCHA}/getTaskResult", json={"clientKey": APIKEY, "taskId": task_id}).json()
print(result)

if result.get("status") == "ready":
token = result.get("solution", {}).get("token")
print(f"Captcha solved successfully! Result token: {token}")
return token, task_id

elif result.get("errorCode") == "ERROR_CAPTCHA_UNSOLVABLE" :
print("Error: Captcha is unsolvable.")
break
else:
print("Captcha not ready yet, retrying...")
print("Task timed out or failed.")
driver.refresh()
TryLogin(driver=driver)
startCaptchaProccess(driver=driver, ver="2CAPTCHA")
except Exception as e:
print(f"failed somewhere in the solve captcha proccess. {e}")
return None


I’m also intercepting the URL to block the CAPTCHA rendering as follows:

blocked_urls = [
"https://arkoselabs.roblox.com/rtig/image?challenge"
]

def interceptor(request):
if any(blocked in request.url for blocked in blocked_urls):
print(f"Intercepting and faking 200 OK for: {request.url}")

# Create fake 200 response
request.create_response(
status_code=200,
headers={'Content-Type': 'image/png'},
body=b'Haha you stinky i faked'
)

url = request.url
if url and "publicKey=" in url:
publicKey = url.split("publicKey=")[1].split("&")[0]
Blob = url.split("dataExchangeBlob=")[1].split("&")[0]
print(f"Public key: {publicKey}")
print(f"Blob: {Blob}")
print("starting to solve captcha")

token, task_ID = solve_captcha(publicKey, page_url=driver.current_url, blob=Blob, driver=driver)

if token:
print("Injecting token..")
submit_captcha(driver, token, task_ID)


When I submit the token with this snippet:

captcha_input = driver.find_element(By.ID, "FunCaptcha-Token")
driver.execute_script("arguments[0].setAttribute('value', arguments[1])", captcha_input, token)
print("Captcha token injected successfully!")
try:
time.sleep(2)
for x in range(10):
button = driver.find_element(By.XPATH, "//button[text()='Submit']")
button.click()
time.sleep(5)
print("Captcha form submitted!")
try:
driver.find_element(By.XPATH, "//button[text()='Try again']")
print("Captcha solved was inncorect. Reloading..")
driver.refresh()
TryLogin(driver=driver)
startCaptchaProccess(driver=driver, ver="2CAPTCHA")
except:
pass


I repeatedly get a message indicating that the CAPTCHA was solved incorrectly, prompting me to reload the page.

Screenshot of Results:


[[The resut after submiting the captcha](https://i.sstatic.net/26fVVxyM.png)](https://i.sstatic.net/9na4IgKN.png)

Request for Help:
Can anyone suggest additional troubleshooting steps or modifications to my code that might resolve the issue?

Thanks in advance for your assistance!

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