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web-security

Browser security features like same-origin policy

WebWhy Blob URL CSS Fails in Iframe on File:// & Fix

Fix blob URL iframe issues where CSS doesn't apply locally via file:// protocol due to blob null origin and SOP blocks. Use data URLs, srcdoc, or document.write as alternatives for local dev without a server.

1 answer• 1 view
WebjQuery HTML Escaping: Prevent XSS with Safe Methods

Learn how to escape HTML strings in jQuery to prevent XSS attacks. Discover safe methods like .text(), .parseHTML(), and programmatic DOM creation for secure content display.

1 answer• 2 views
ProgrammingFix Spring Security Access Denied Error for Root Path in Spring Boot with JSP

Learn how to resolve Spring Security access denied errors when accessing root path '/' in Spring Boot applications with JSP views. Complete solutions and best practices.

1 answer• 1 view
WebHow to Block Russian IPs with .htaccess Guide

Learn to use .htaccess for blocking Russian IP addresses on educational sites. Implement GeoIP blocking, IP deny lists, custom 403 messages like 'This material/link is not available in the Russian Federation', and server-side link hiding for compliance.

1 answer• 12 views