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    zaasmiZ
    The error ServiceWorker registration error name: “InvalidStateError” typically occurs when attempting to register a Service Worker in a context or state that doesn’t support it. Here’s what it means and how to fix it: ⸻ 🔍 What Does InvalidStateError Mean? This error happens when: • You try to register a Service Worker on a non-secure origin (HTTP instead of HTTPS). • You attempt to register it outside the main thread or in an invalid lifecycle phase. • The browser is in a state where the Service Worker can’t be installed (e.g., page not fully loaded). ⸻ ✅ Checklist to Fix the Issue 1. Use HTTPS Service Workers only work over HTTPS, except on localhost (which is allowed for development). ✅ Make sure your site is served over https://. 2. Correct Path Check that the path to your service-worker.js file is correct and accessible. navigator.serviceWorker.register('/service-worker.js') Register After Page Load Always register the Service Worker after the load event or when DOMContentLoaded has fired: window.addEventListener('load', () => { navigator.serviceWorker.register('/service-worker.js') .then(reg => console.log('SW registered', reg)) .catch(err => console.error('SW registration failed', err)); }); Same Origin Policy Ensure your service-worker.js is on the same origin as your page. Cross-origin SWs are not allowed. 5. Browser Support Verify you’re using a browser that supports Service Workers. ⸻ 🛠 Example Fixed Code if ('serviceWorker' in navigator) { window.addEventListener('load', function () { navigator.serviceWorker.register('/service-worker.js') .then(function (registration) { console.log('ServiceWorker registration successful with scope: ', registration.scope); }, function (err) { console.error('ServiceWorker registration failed: ', err); }); }); } ⸻ ❓Still Not Working? If you’re still seeing the error, share: • The registration code. • The URL you’re running it on. • The browser and version. I can help troubleshoot it further!
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