How to Fix the “Failed to Load Resource: net::ERR_BLOCKED_BY_CLIENT” Error

Ever visit a website and something just feels off? Maybe the page won’t load, or it looks okay until you spot a broken image, a dead button, or a file that refuses to download. In most cases, the troublemaker is the same: ERR_BLOCKED_BY_CLIENT.

What makes it tricky is that the error often hides. Unless you open Chrome’s developer tools and check the Console tab, you might not even know anything was blocked. Behind the scenes, your browser or an extension is quietly stopping images, scripts, or files from loading.

The main reason? Browser extensions, such as ad blockers or privacy tools, sometimes go too far, blocking harmless content like images, scripts, or even PDFs. This can be frustrating whether you’re just browsing or running a site and wondering why parts of your page won’t load for some visitors.

In technical terms, the net::ERR_BLOCKED_BY_CLIENT error occurs when a browser extension blocks a resource from loading, making it appear missing or broken. Understanding this helps both users and site owners quickly identify the problem.

Let’s break down why this happens in detail and—more importantly—how to fix it for both visitors and website owners, restoring full site functionality without removing extensions entirely.

What Usually Triggers the “Failed to Load Resource” Error?

There are a few everyday things that can cause this error to show up in your browser.

One of the most common ones? Extensions.

Ad blockers and privacy tools like uBlock Origin or Ghostery sometimes block stuff they think is a tracker or ad but they’re not always right. If a script, image, or even a font looks suspicious to them, they’ll just stop it from loading.

Another cause is a broken file path. Maybe someone typed the wrong URL. Maybe the file was renamed or moved but the page still points to the old location. Either way, the browser goes looking for something that’s not there, and you get the error.

It could also be the server’s fault. If the file lives on another server and that server’s down, or even just slow to respond, the browser might give up. And if it’s coming from a different domain entirely, there might be some permission rules (CORS stuff) blocking it from loading.

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Different Variations of the “Failed to Load Resource” Error

The error doesn’t always look identical. You might see slightly different versions depending on:

• Your browser (Chrome, Firefox, etc.)
• The website you’re visiting
• What’s actually causing the issue

In Chrome, it usually shows up as:

“Failed to load resource: net::ERR_BLOCKED_BY_CLIENT”

Sometimes it’s more specific:

• On WooCommerce sites during checkout
• When video platforms block embedded content
• When certain fonts or scripts get blocked

The wording changes, but the result stays the same – something on the page won’t load. Most often it’s because:

• An ad blocker went too far
• Privacy extensions blocked something
• Security plugins got overprotective

Whether you’re just browsing or running a site, this error means something got blocked that shouldn’t have.

How to Fix ERR_BLOCKED_BY_CLIENT Error [For Website Owners + Visitors]

The “ERR_BLOCKED_BY_CLIENT” error can affect both visitors and website owners. Let’s look at some ways to fix it for each group.

For Website Visitors: How to Fix ERR_BLOCKED_BY_CLIENT

Let’s start with a few fixes for regular website visitors encountering this error.

Solution 1: Allow the Website in Your Extension Settings

If you’re running into this error on a site you trust, the easiest fix—without disabling your entire extension—is to mark the site as safe.

Many ad blockers or privacy-focused extensions let you “allowlist” websites. This tells the extension not to block anything on that specific domain. So, if you’re confident the site is legitimate and you don’t want it to be restricted, adding it to the exception list can stop the error from showing up.

The option to do this is usually found in the extension’s settings. Just open the extension, look for the option to manage trusted sites or exclusions, and add the website to that list.

If you’re seeing this error due to browser security settings, remember that not all access issues come from extensions sometimes, the browser blocks resources because it can’t establish a secure SSL connection with the website, similar to what happens with the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error.

Solution 2: Turn Off Your Extensions

Often the fastest solution is to disable extensions that might be blocking content. Here’s how:

• In Chrome, click the three-dots menu (top-right corner).
• Select Extensions > Manage extensions.

• Disable all extensions by turning off the toggle next to each one.

• Refresh the website and see if the error is gone.

If the error disappears, an extension is likely the cause. To pinpoint the problem, reactivate each extension one by one and check which one is blocking the resources.

Solution 3: Reset Your Browser to Its Default Settings

If none of the earlier fixes have worked, resetting your browser can help wipe out the underlying problem. This step clears out extensions, custom tweaks, and any cached data that may be clashing with the website you’re trying to visit.

Over time, browsers can accumulate all sorts of changes—some intentional, some accidental. These include addons that might overreach, misconfigured settings, or corrupted files from past browsing sessions.

Resetting the browser wipes all that clean and puts everything back to how it was when you first installed it.

Here’s how to reset Google Chrome:

• Click the three-dot menu at the top-right corner.
• Go to Settings.
• Click Restore settings.

• When prompted, confirm by hitting Reset settings.

This puts your browser back to square one, which can often clear up errors like ERR_BLOCKED_BY_CLIENT that are being caused by something buried in your setup.

Solution 4: Try Incognito Mode

Another option is to open the web page using Chrome’s Incognito mode. This private browsing feature doesn’t store your history or cache, which can help determine whether the issue is related to your regular browsing data.

Here’s how to use Incognito mode:

• Open Google Chrome and click on the three dots in the upper-right corner.
• From the drop-down menu, select New Incognito Window.

Or…simply hit Ctrl+Shift+N.

Now, try accessing the website again in this private window to see if the error goes away.

If the website loads without issues in Incognito mode, the problem is likely tied to your browser history, cached files, or cookies. In that case, clearing them out may solve the problem.

Sometimes, the problem isn’t your browsing data but the browser blocking the site due to an insecure SSL connection like when you encounter the Your Connection is Not Private error, which warns about potential security risks before loading a page.

Solution 5: Clear Cache and Cookies

Building on the previous step, where we used Incognito mode to determine if browsing history or cache was causing the error, another effective fix is to clear your browser’s cache and cookies.

These files can become outdated or corrupted, leading to the ERR_BLOCKED_BY_CLIENT error.

To fix this issue, follow these steps:

• Open Google Chrome and click on the three dots in the top-right corner.
• Select Settings, then navigate to Privacy and Security.

• Click on Delete browsing data.

• Choose Cached images and files and Cookies, and other site data.
• Select the time range you’d like to clear (you can choose “All time” to start fresh).
• Click Delete data to remove the selected files.

After clearing your cache and cookies, try visiting the website again and see if the error persists.

Solution 6: Temporarily Disable Your Antivirus Software

In some cases, antivirus software can block certain resources from loading properly, triggering the ERR_BLOCKED_BY_CLIENT error. If you have antivirus software running, try temporarily disabling it to see if that’s what’s causing the issue.

If disabling your antivirus resolves the issue, it’s likely that the software was interfering with the site. You can adjust its settings to allow the website to load without problems in the future.

For Website Owners & Developers: Advanced Fixes

We’ve already walked through fixes that regular visitors can try. Now let’s shift focus. This error can be costly for website owners, especially if it keeps potential customers from accessing key pages.

Here’s what you can do as a website owner to fix the ERR_BLOCKED_BY_CLIENT error.

Solution 1: Use Ad Blocker Logs to Spot and Fix Blocked Resources

If users are hitting the “ERR_BLOCKED_BY_CLIENT” error on your site, there’s a good chance ad blockers are flagging some of your assets like images, scripts, or tracking files. These tools are designed to block anything that looks remotely like an ad, even if it’s harmless.

You can use a browser extension like AdBlock to see what’s being blocked. Here’s how:

• Open your site in Chrome with AdBlock enabled
• Right-click and select Inspect
• Head to the AdBlock tab in the DevTools panel

This will show you a live feed of everything the extension is stopping. Scroll through the blocked items and look for patterns.

• Are certain filenames getting flagged?
• Are scripts hosted under paths like /ads/ or /tracking/ being blocked?

If you spot anything that looks like a false positive, try renaming the file or changing its path to avoid triggering the filter.

For example, access your website files via FTP/SFTP using a tool like FileZilla.

Find the blocked file—say, /js/promo-banner.js—and rename it to something less likely to trigger a filter, such as /js/featurebox.js. Then update any links or references to that file in your HTML or template so the correct version loads.

Even a small naming tweak can keep your content from being blocked—no code changes required.

Solution 2: Verify Your Server Files Are in the Right Place

Sometimes the error doesn’t come from the visitor’s browser – your website’s file setup might be causing the problem. When files are missing, put in the wrong folder, or named incorrectly, browsers can show this error even though nothing’s actually being blocked. The browser simply can’t find what it’s looking for.

Here’s how to check this:

• Log into your hosting account or connect via FTP
• Go through your website’s folders carefully

• Match each file’s location with where your code says it should be

A common mistake happens when your code points to one location but the file lives somewhere else. Say your HTML calls for “/scripts/banner.js” but you actually put the file in “/assets/js/” – that mismatch will trigger the error. Either update the path in your code or move the file to where your code expects to find it.

This kind of error is easy to miss but usually quick to fix once you spot the mismatch. Take your time checking each file reference against where files actually exist on your server.

Solution 3: Check Content Security Policy (CSP) Headers

Sometimes your website’s security settings might be too strict without you realizing it. The Content Security Policy (CSP) acts like a bouncer for your site, deciding what gets loaded and what gets blocked. If this bouncer’s rules are too tight, it might accidentally keep out important stuff your site needs to work properly.

Here’s how to check if this is causing problems:

• Open your site in Chrome
• Hit F12 to bring up developer tools
• Look at the Console tab for red error messages

If you see warnings like “Refused to load” or “Blocked by CSP“, you’ve found the culprit. These messages will tell you exactly what’s being blocked.

To fix this, you’ll need to:

• Find your CSP settings (usually in .htaccess or server config)

• Adjust the rules to allow necessary resources
• Make sure trusted services (like Google Fonts or Analytics) are permitted

Remember: It’s about finding the right balance between security and functionality. Don’t make the rules so loose that they create security risks, but don’t make them so tight that they break your site.

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Wrapping Up

The ERR_BLOCKED_BY_CLIENT message can be frustrating, but it’s usually fixable. For regular users, it often comes down to:

• Trying a different browser
• Disabling extensions temporarily
• Using private browsing mode

For website owners, the solutions typically involve:

• Checking for ad blocker conflicts
• Verifying file locations and names
• Reviewing security policies

If you’ve tried all these steps and still see the error, it might be time to get some expert help. Cloudways offers round-the-clock support if you need assistance getting your site back on track.