There is a service worker registered on the domain name, for example https://nextjs-agaw8i--3000.local.webcontainer.io/ https://nextjs-agaw8i--3000.local.webcon

There is a service worker registered on the domain name, for example https://nextjs-agaw8i--3000.local.webcontainer.io/ https://nextjs-agaw8i--3000.local.webcontainer.io/, then when you visit this URL in another tab it basically shares the service worker from the stackblitz tab.