This article explains the design and functionality of the new Sanitizer API being integrated into browsers for HTML sanitization. It highlights how the API aims to prevent XSS vulnerabilities by eliminating the need for ambiguous parsing and ensuring context sensitivity during input processing.

The article discusses the implications of using `target="_blank"` in HTML links, specifically how it can pose security risks by allowing the new page to access the originating window. It emphasizes the importance of adding `rel="noopener"` to mitigate these risks and improve security when opening external links.

The article discusses the setHTML() method of the Element interface, which provides a secure way to parse and sanitize HTML strings before inserting them into the DOM. It emphasizes the method's capability to remove XSS-unsafe elements and attributes, making it a safer alternative to Element.innerHTML for handling user-provided HTML. The article also includes syntax, parameters, and examples for using the method effectively.