Version 4.6 release notes | FoalTS
Briefly

Foal has announced the release of version 4.6, which focuses on enhancing security by removing the deprecated X-XSS-Protection header. This header, previously utilized by browsers like Internet Explorer, Chrome, and Safari to defend against reflected cross-site scripting (XSS) attacks, is no longer recommended as it may inadvertently lead to XSS vulnerabilities on safe websites. Importantly, users can update to this latest version without requiring any code modifications.
Version 4.6 of Foal is out, featuring a significant security update that removes the deprecated X-XSS-Protection header, a remnant from older web browsers.
The X-XSS-Protection header was initially designed to stop reflected cross-site scripting attacks, but its removal is now advised due to potential XSS vulnerabilities it can introduce.
Read at Foalts
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