fetch hook

The fetch hook tag covers discussions about a proposed change to the Fetch specification that gives browsers a standard hook to block or modify network requests after normal checks like Content Security Policy and mixed content are performed. This mechanism is central to Google Chrome's experimental Script Blocking in Incognito feature, which uses a Masked Domain List to block third-party scripts known for browser fingerprinting. The tag focuses on browser security, privacy protections, and the technical implementation of request interception in web standards.