Simon Willison’s Weblog

Use a .dev domain? Not anymore. Google bought the .dev gTLD a few years ago for their own internal usage and in a few weeks time Chrome will start shipping a HSTS preload list rule that says that .dev must be served over HTTPS. This means that if you’re using a .dev domain in your /etc/hosts file you’ll need to switch to .test or .localhost (or set up a self-signed certificate) or your development environment will refuse to load.

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