Web Security

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How to reduce your risk of cross-site scripting attacks with vanilla JavaScript
Injecting text instead of HTML with vanilla JS to reduce your risk of XSS attacks
Trusted Types API for JavaScript DOM Security
Protecting against DOM XSS security vulnerabilities in JavaScript
Refused to frame 'https://xxx.myshopify.com/' because an ancestor violates the following Content Security Policy directive: "frame-ancestors 'none'".
How to win at CORS
Trusted Types API for JavaScript DOM Security
Don’t try to sanitize input. Escape output.
- https://news.ycombinator.com/item?id=29921276
Retrieving your browsing history through a CAPTCHA - The :visited pseudo-class poses privacy risks for people who surf the web. As a user, you can stop web pages from tracking your history by disabling visited link highlighting in your web browser.
Securing Express Web Applications With Helmet - Learn how to use Helmet to set Content-Security-Policy, X-DNS-Prefetch-Control, X-Frame-Options, X-Powered-By, plus much more.
- Using Helmet to set the Content-Security-Policy header
- Using Helmet to set the X-DNS-Prefetch-Control header
- Controlling enabled browser features using the Feature-Policy header
- Using Helmet to set the X-Frame-Options header
- Using Helmet to remove the X-Powered-By header
- Improving HTTPS with Strict Transport Security
- Mitigating XSS attacks with Helmet
What is a realm in JavaScript?
- Introducing Snow
Web fingerprinting is worse than I thought
Edge sends images you view online to Microsoft, here is how to disable that
CSP Testing Using Cypress
Google AMP – The Newest of Evasive Phishing Tactic

https://www.google.com/amp/s/${phishing URL}
Preventing HTTPS Downgrade Attacks
- configuring servers to redirect all HTTP traffic to HTTPS and setting the HTTP Content-Security-Policy and Strict-Transport-Security headers to enforce HTTPS-only browsing
- The HSTS preload directive further strengthens security by ensuring browsers always use HTTPS for a domain
Polyfill.io, 중국 CDN 기업에 인수된 후 보안 및 안정성 문제 발생
- polyfill.io now available on cdnjs: reduce your supply chain risk
DoubleClickjacking: A New Era of UI Redressing - get users to commit to clicking twice, but the pop up page only accepts a single click before closing. Their second click goes to the page underneath the pop up, which is e.g. an authentication button. — nneonneo

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