How To Avoid Ajax Request In Browser

How To Avoid Ajax Request In Browser

Avoiding AJAX requests in the browser can mean different things depending on your role (user or developer) and your goal (blocking, disabling, or debugging them). Here’s how to handle each case:

🧑‍💻 If You’re a Developer:

✅ 1. Don’t Use AJAX in Your Code

The most direct way:

• Simply avoid using fetch(), XMLHttpRequest, or jQuery’s $.ajax().

Instead, use:

• Regular form submissions (<form action="...">)
• Full page reloads (window.location.href = ...)

✅ 2. Disable AJAX Conditionally

If AJAX is used conditionally, control it with flags:

jsCopyEditif (!disableAjax) {
  fetch('/api/data')
    .then(res => res.json())
    .then(data => console.log(data));
}

✅ 3. Override Fetch or XMLHttpRequest

Prevent all AJAX calls like this:

Disable fetch():

jsCopyEditwindow.fetch = function () {
  console.log('fetch() request blocked');
  return Promise.reject('Blocked');
};

Disable XMLHttpRequest:

jsCopyEditXMLHttpRequest.prototype.open = function () {
  console.log('AJAX request blocked');
};

⚠️ Use with caution — this disables all AJAX calls site-wide.

🧑‍💻 If You’re a User (or QA/Tester):

✅ 4. Block AJAX Requests Using Browser Dev Tools

1. Open DevTools → Network tab
2. Right-click an AJAX request → Block request domain or Block URL pattern
3. Reload the page

You can also use the “Breakpoints” tab in DevTools to pause on fetch() or XHR.

✅ 5. Block With Extensions

Install browser extensions like:

• 🔒 uBlock Origin – You can create custom rules to block specific requests
• 🧪 Tampermonkey – Run user scripts to disable or override AJAX logic
• 🛑 NoScript (Firefox) – Blocks scripts entirely (advanced users)

Example uBlock rule:

bashCopyEdit||example.com/api/*$xmlhttprequest

✅ 6. Simulate No AJAX for Testing

You can throttle or block AJAX for testing:

• In DevTools → Network → Throttle (Slow 3G, Offline)
• Block specific request URLs using “Request Blocking” in Chrome DevTools (right-click → Block request URL)

✅ TL;DR: How to Avoid AJAX Requests in Browser

Goal	Solution
Disable AJAX in your app	Don’t use fetch() or XMLHttpRequest
Override browser-level AJAX	Monkey-patch fetch or XMLHttpRequest
Block as a user	Use DevTools or browser extensions
Simulate blocked AJAX	Use DevTools > Network throttling or request blocking