I’m encountering an error in my Blazor WebAssembly application that prevents me from caching resources using the Cache API. The error message is:

JavaScript
Uncaught (in promise) TypeError: Failed to execute 'addAll' on 'Cache': Request failed Use code with caution.`

browser console:

My service-worker.js is:

self.addEventListener('install', function (event) {
    event.waitUntil(
        caches.open('my-cache').then(function (cache) {
            return cache.addAll([
                '/index.html',
                '/css/styles.css',
                '/js/main.js',
                // Add other static assets here
            ]);
        })
    );
});

self.addEventListener('fetch', function (event) {
    event.respondWith(
        caches.match(event.request).then(function (response) {
            return response || fetch(event.request);
        })
    );
});

my service-worker.js
I’ve tried various troubleshooting steps, including:

Verifying that the resources I’m trying to cache are accessible and have no CORS issues.
Checking for syntax errors in my JavaScript code that utilizes the Cache API.
Inspecting my Service Worker configuration for any potential problems.
Despite these efforts, the error persists. I’ve also searched for solutions online but haven’t found any that resolve the issue specifically for Blazor WebAssembly.

Additional details:

I’m using the latest version of Visual Studio and the .NET 6 SDK.
I’ve tried restarting my development environment and computer.
I’m attaching relevant code snippets and error logs for further context.
I would appreciate any assistance or guidance from the Stack Overflow community in resolving this error.

Tags: blazor, webassembly, cache-api, service-worker, error

Additional information to include:

A minimal reproducible example of the issue
Relevant error logs and console output
Specific steps to reproduce the error

I hope this helps!

This problem was created after getting information from My GITLAB
I’m using the latest version of Visual Studio and the .NET 6 SDK.
I’ve tried restarting my development environment and computer.
I’m attaching relevant code snippets and error logs for further context.
I would appreciate any assistance or guidance from the Stack Overflow community in resolving this error.