Loading article...
Fetching the blog content...
Starter#Security#XSS
Web Security: Deep Notes
XSS (stored, reflected, DOM-based), CSRF, CORS and the Same-Origin Policy, auth token storage tradeoffs (HttpOnly cookies vs localStorage), and a set of quick-hit defenses — explained as layered mental models, not a checklist.
By modernDev2026-06-05
Goal: Understand XSS, CSRF, CORS, and auth token storage deeply enough to argue tradeoffs — not just name defenses. The depth that distinguishes a senior frontend answer from a checklist recitation.
Related Articles
Continue learning with these related challenges
Web Fundamentals: Deep Notes
BlogsThe rendering pipeline, critical rendering path, event loop, CSS cascade and layout, and HTTP — explained as mental models and edge cases, not surface definitions. The "do you actually understand how the browser works" round.
HTMLCSSJavaScriptHTTP+1
Frontend Roadmap, Tier 3: Advanced Deep Notes
BlogsBuild systems, security, offline-first patterns, internationalization, maintainable CSS, performance internals, and design systems — the advanced tier where senior-level depth is tested. Part 3 of the Frontend Roadmap series.
WebpackViteService WorkersCSS+1
Performance Optimisation from First Principles
BlogsUnderstanding frontend performance optimization from the ground up - learn how browsers work and optimize your code accordingly.
PerformanceFrontendJavaScriptBrowser
Blogs
Web Fundamentals: Deep Notes
The rendering pipeline, critical rendering path, event loop, CSS cascade and layout, and HTTP — explained as mental models and edge cases, not surface definitions. The "do you actually understand how the browser works" round.
HTMLCSSJavaScript+2
Blogs
Frontend Roadmap, Tier 3: Advanced Deep Notes
Build systems, security, offline-first patterns, internationalization, maintainable CSS, performance internals, and design systems — the advanced tier where senior-level depth is tested. Part 3 of the Frontend Roadmap series.
WebpackViteService Workers+2
Blogs
Performance Optimisation from First Principles
Understanding frontend performance optimization from the ground up - learn how browsers work and optimize your code accordingly.
PerformanceFrontendJavaScript+1