Block Request Patterns

A Chrome extension that blocks unwanted web requests and provides smart CDN redirects for better performance and privacy.

Features

• Block unwanted requests using URL patterns
• Smart CDN redirects for common services:
  • Cloudflare CDN → Staticfile CDN
  • Google reCAPTCHA → Recaptcha.net
  • jQuery → Microsoft AspNet CDN
• Simple configuration through extension popup
• Default patterns for blocking common analytics trackers
• Uses Chrome's modern declarativeNetRequest API for efficient request blocking

Installation

1. Download the extension
2. Go to Chrome's extension page (chrome://extensions/)
3. Enable "Developer mode" in the top right
4. Click "Load unpacked" and select the extension directory

Usage

1. Click the extension icon in your browser toolbar
2. Edit the patterns in JSON array format
3. Click "Save" to apply changes

Pattern Examples

[
    "*://google-analytics.com/*",
    "*://*.google-analytics.com/*",
    "*://*.g.doubleclick.net/*"
]

Pattern Syntax

• Use * as a wildcard to match any number of characters
• Use ? to match a single character
• Patterns must follow the URL filter format: [scheme:]//[host]/[path]
• Leading wildcard before scheme must include :// (e.g. *://example.com/*)

Built-in Redirects

The extension automatically redirects certain services to privacy-friendly alternatives:

1. Cloudflare CDN → Staticfile CDN

   • From: cdnjs.cloudflare.com/ajax/libs/*
   • To: cdn.staticfile.net/*

2. Google reCAPTCHA → Recaptcha.net

   • From: www.google.com/recaptcha/*
   • To: www.recaptcha.net/*

3. jQuery → Microsoft AspNet CDN

   • Automatically redirects jQuery requests to Microsoft's CDN

Privacy

This extension helps protect your privacy by:

• Blocking common analytics and tracking scripts
• Redirecting to privacy-friendly CDN alternatives
• Operating entirely locally (no data sent to external servers)