自定义人机验证脚本失效排查：call_locker()调用异常

Alright, let's dig into why your human verification script isn't working as expected. Here are the most common issues and how to fix them:

1. You’re not waiting for the dynamic content to finish loading #

The replaceWith() method swaps out the #locker-content element immediately, but if you’re loading content from load.php into #offer-block, you can’t just call call_locker() right after—because the content (and any scripts it includes) is probably still loading or parsing. The function will run before it has everything it needs.

Fix: Use an async loading approach that waits for the content to fully load before triggering call_locker(). Here’s a revised script using fetch() to handle this properly:

document.getElementById('verify-btn').addEventListener('click', async function() {
  const lockerContent = document.getElementById('locker-content');
  const verifyUrl = 'https://www.areyouahuman.co/contentlockers/load.php?id=8fafdf8fb2e51b7e6b20ea84ba1489e5';

  try {
    // Fetch the verification content first
    const response = await fetch(verifyUrl);
    const contentHtml = await response.text();

    // Replace the locker content with the loaded HTML
    lockerContent.replaceWith(contentHtml);

    // Wait a short moment for any embedded scripts to parse and become available
    setTimeout(() => {
      if (typeof call_locker === 'function') {
        call_locker();
      } else {
        console.error('Uh-oh, the call_locker function isn’t available yet!');
      }
    }, 100); // Adjust this delay if needed—most scripts parse faster than this

  } catch (error) {
    console.error('Failed to load verification content:', error);
  }
});

2. Your element targeting breaks after replacement #

If #offer-block is a child of #locker-content, using replaceWith() will completely remove #locker-content (and its children, including #offer-block) from the DOM. If the HTML returned by load.php doesn’t include a new #offer-block element, your code has nowhere to load the content into.

Fix:

• Double-check that the HTML from load.php includes an element with the #offer-block ID.
• Or, instead of replacing #locker-content entirely, update its inner content with lockerContent.innerHTML = contentHtml—this keeps the container element intact, so #offer-block (if it’s inside) stays accessible.

3. The call_locker() function isn’t ready when you call it #

If call_locker() is defined in the content loaded from load.php, browsers need a split second to parse and execute that script after inserting it into the DOM. Calling the function immediately after replaceWith() will fail because the function doesn’t exist yet.

Fixes:

• Use the short setTimeout() trick from the first example to give the browser time to process the new scripts.
• If you control the load.php code, have it trigger call_locker() automatically once its own content is fully loaded (e.g., add call_locker(); at the end of the script in load.php).

4. CORS restrictions might be blocking the load #

If your website is hosted on a different domain than areyouahuman.co, directly fetching the load.php content could be blocked by Cross-Origin Resource Sharing (CORS) policies.

Fix: Check your browser’s developer console (F12 > Console tab) for CORS-related errors. If you see them, you’ll need to either:

• Load the verification content via an iframe instead of fetching it directly.
• Use a server-side proxy on your own domain to fetch the load.php content and serve it to your script.

内容的提问来源于stack exchange，提问作者Jowita Wera