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Troubleshooting MailChimp and Third-Party Scripts Not Loading with WPCode

14 threads Sep 16, 2025 Plugin → Wpcode

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Adding scripts for services like MailChimp, chatbots, or popups is a common task for WordPress site owners. A frequent issue reported by users is that these scripts, while correctly inserted using the WPCode plugin, fail to load or work as expected on their websites. This guide will walk you through the most common reasons for this problem and how to fix them.

Why Your Script Might Not Be Working

Based on common support threads, scripts can fail for several reasons unrelated to the WPCode plugin itself. The plugin successfully inserts the code into your site's HTML, but other factors can prevent it from executing correctly.

Common Causes and Solutions

1. Caching Issues

This is one of the most prevalent causes. Your browser, a caching plugin, or your server might be serving an old, cached version of your page that doesn't contain the newly added script.

  • Solution: Clear all your caching layers. This includes your browser cache, any WordPress caching plugins (e.g., WP Rocket, W3 Total Cache), and your hosting provider's server-level cache (e.g., Varnish, Object Cache). After clearing the cache, always perform a hard refresh (Ctrl + F5 on Windows, Cmd + Shift + R on Mac) to check the page.

2. Incorrect Code Type or Location

Scripts often have specific requirements for where they should be placed (header vs. footer) and how they are wrapped.

  • Solution: For most external scripts (like MailChimp's), you should use the HTML code type in WPCode. Ensure the snippet is active. If the script is not dependent on the page header, try inserting it in the Site Wide Footer location. This ensures the rest of the page (and the elements your script might target) is loaded before the script runs.

3. Script Conflicts with Other Plugins or Themes

Another plugin or your theme might be causing a JavaScript conflict that prevents your script from initializing.

  • Solution: Perform a conflict test. Temporarily deactivate all other plugins except WPCode. If the script starts working, reactivate your plugins one by one to identify the culprit. If the problem persists with all plugins off, temporarily switch to a default WordPress theme (like Twenty Twenty-Four) to test for a theme conflict.

4. Asynchronous/Dynamic Content Loading

If your script is designed to interact with an element on the page (e.g., a button or a form), but that element is loaded asynchronously via AJAX (common with page builders like Elementor or Beaver Builder), a standard event listener may not work.

  • Solution: You may need to use event delegation or listen for specific events emitted by your page builder or form plugin (e.g., Forminator, Contact Form 7) to ensure your code runs after the dynamic content is fully ready.

5. Script Errors from the Third-Party Service

Sometimes, the issue lies with the script provided by the third-party service (e.g., MailChimp, MobileMonkey). An error in their code can halt all subsequent JavaScript on your page.

  • Solution: Open your browser's console (F12 on most browsers, then go to the 'Console' tab) and look for red error messages. These errors can often point to the exact line of code that is failing. If you find an error related to the script, you should contact the service's support team and provide them with the error message.

MailChimp-Specific Troubleshooting

MailChimp scripts are a common source of issues. If you see an error like "we’re not able to detect your website" or "we can’t find the mc.js script", follow these steps:

  1. Confirm the script is inserted using the HTML code type in an active WPCode snippet.
  2. Clear all caching as described above and wait a few minutes. MailChimp's system can take time to verify the code is live.
  3. Use your browser's 'View Page Source' feature and search for mcjs or the script URL to confirm it is present in the HTML output.
  4. Check the browser console for JavaScript errors related to the MailChimp script.

By methodically working through these common causes, you can usually identify and resolve why a third-party script isn't loading on your WordPress site.

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