A plethora of unhandled DOMException errors found in a basic Vue.js application

I have been working on a Vue.js project for learning purposes, incorporating Quasar and Vuex. However, I keep encountering numerous 

Uncaught (in promise) DOMException
errors which appear in the console. The application seems to work fine, but these red errors are concerning. How can I go about debugging and resolving this issue?

Upon refreshing the website, the errors quickly populate the console even before the full app is loaded:

Each error presents as follows:

Uncaught (in promise) DOMException    service-worker.js:1

Promise.then (async)
(anonymous)         @ workbox-strategies.dev.js:681
step                @ workbox-core.dev.js:14
(anonymous)         @ workbox-core.dev.js:25
Promise.then (async)
step                @ workbox-core.dev.js:24
(anonymous)         @ workbox-core.dev.js:32
(anonymous)         @ workbox-core.dev.js:11
_getNetworkPromise  @ workbox-strategies.dev.js:691
(anonymous)         @ workbox-strategies.dev.js:554
step                @ workbox-core.dev.js:14
(anonymous)         @ workbox-core.dev.js:32
(anonymous)         @ workbox-core.dev.js:11
makeRequest         @ workbox-strategies.dev.js:578
(anonymous)         @ workbox-strategies.dev.js:504
step                @ workbox-core.dev.js:14
(anonymous)         @ workbox-core.dev.js:32
(anonymous)         @ workbox-core.dev.js:11
handle              @ workbox-strategies.dev.js:508
handleRequest       @ workbox-routing.dev.js:365
(anonymous)         @ workbox-routing.dev.js:835

Attempts to clear cache and perform a hard reload do not resolve the issue.

I am launching the app using the npm run dev script.

The entire codebase can be found on my BitBucket repository

javascriptvue.jspromiseservice-workerdomexception

Answer №1

After taking Ohgodwhy's advice, I discovered that the issue stemmed from an outdated service worker on my domain (specifically, localhost). The solution is to uninstall it.

To remove a service worker in Chrome:

  1. Access the developer tools in your browser (F12 or command + option + i)
  2. Navigate to the Application tab
  3. Locate the Service Workers section
  4. Click on Unregister next to the problematic service worker

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