Getting "net::ERR_BLOCKED_BY_CLIENT" error on some AJAX calls

Getting "net::ERR_BLOCKED_BY_CLIENT" Error on Some AJAX Calls

👋 Hello there! Welcome to my tech blog, where I break down complex problems into easy-to-understand solutions. Today, we are going to tackle the common issue of getting the "net::ERR_BLOCKED_BY_CLIENT" error on some AJAX calls.

Understanding the Error

So, you've stumbled upon the following error message in your console:

GET http://localhost/prj/conn.php?q=users/list/ net::ERR_BLOCKED_BY_CLIENT

This error typically occurs when an ad blocker extension, such as AdBlocker Plus, blocks certain AJAX calls on your website. The question is, why does it block some AJAX calls but not others?

The Culprit: Ad Blockers

Ad blockers are designed to prevent unwanted ads and protect users from potentially harmful content. By analyzing the requests made by your website, they determine whether the request is related to an ad and subsequently block it.

In the case of AJAX calls, ad blockers might mistake them for ad-related requests, and thus, block them. This can lead to the "net::ERR_BLOCKED_BY_CLIENT" error message in your console.

Workarounds

Now, let's talk about some easy workarounds to resolve this issue without having to ask the user to turn off their ad blocker.

1. Whitelist Your AJAX Endpoints

Most ad blocker extensions allow users to whitelist specific domains or URLs. By whitelisting your AJAX endpoints, you can ensure that the ad blockers don't interfere with those requests.

For instance, if your AJAX endpoint is http://localhost/prj/conn.php, add it to the whitelist within the ad blocker settings. This will prevent the "net::ERR_BLOCKED_BY_CLIENT" error from occurring.

2. Change the AJAX Request URL Structure

In some cases, ad blockers might specifically target URL patterns commonly used in ad-related requests. By altering the structure of your AJAX request URLs, you can bypass these filters and avoid the error altogether.

For example, instead of using /q=users/list/ as a parameter in your URL, you could consider using something like /q_users-list/. This tweak can trick the ad blockers into not recognizing the request as ad-related, allowing it to pass through smoothly.

3. Communicate with Users About Ad Blockers

If the above workarounds do not suffice, consider implementing a friendly message to inform users that certain features or functionality may be affected by their ad blocker. Encourage them to whitelist your website or make exceptions for your AJAX requests.

Engage with Us!

I hope this blog post shed light on the "net::ERR_BLOCKED_BY_CLIENT" error you've encountered with your AJAX calls. Remember, understanding the issue and trying these workarounds can help you keep your website running smoothly.

Have you ever faced this error before? How did you solve it? Share your experience in the comments below and let's help each other overcome obstacles in the world of web development! 🚀