Reject Service Worker is a Chrome extension developed by toshi. It falls under the category of Browsers and is specifically categorized as an Add-ons & Tools subcategory.

This extension is designed to deny the automatic registration of service workers. When the extension is introduced, any service workers that have already registered will be unregistered when users visit a site for the first time after the extension is installed. This feature allows users to have more control over the service workers running on their websites.

If there are specific sites where you want to allow service workers to register, you can add the domain name to the whitelist provided by the extension. By doing so, the service workers on those whitelisted sites will not be denied registration.

Reject Service Worker is a free extension available for Chrome users, providing an easy way to manage service worker registrations on your websites.