https://www.bleepingcomputer.com/news/security/microsoft-edges-xss-filter-appears-to-be-broken/

A security feature that's included with the Microsoft Edge browser appears to have stopped working, according to Gareth Heyes, a security researcher with cyber-security firm PortSwigger.

The security feature in question is named "XSS Filter" and is a Microsoft-developed security mechanism that can prevent basic cross-site scripting (XSS) attacks inside browsers.