How MV3 Service Workers Made Me Use an Offscreen Document Just to Play a Goat Sound
The plan was easy, in my head Here's what I thought I needed: chrome.alarms to fire at a random interval chrome.notifications to show a "you good?" popup If the user ignores it for 60 seconds, play a goat sound Step 3 is where things fell apart. Because in Manifest V3, your background script isn't a persistent background page anymore — it's a service worker. And service workers have the audio capabilities of a rock.
- ▪The plan was easy, in my head Here's what I thought I needed: chrome.alarms to fire at a random interval chrome.notifications to show a "you good?" popup If the user ignores it for 60 seconds, play a goat sound Step 3 is where things fell a
- ▪Because in Manifest V3, your background script isn't a persistent background page anymore — it's a service worker.
- ▪And service workers have the audio capabilities of a rock.
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| Original publisher | DEV.to (Top) |
| Canonical URL | https://dev.to/mbilalkhan192003/how-mv3-service-workers-made-me-use-an-offscreen-document-just-to-play-a-goat-sound-dd3 |
| Publication time | Tue, 21 Jul 2026 06:59:27 +0000 |
| Retrieval time | 2026-07-21T07:07:04.087Z |
| Last seen | 2026-07-21T07:07:04.087Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | iCQH9ceou-Sd |
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| Publisher visit | Yes — open original |
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| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 1716950) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } M.Bilal Khan Posted on Jul 21 How MV3 Service Workers Made Me Use an Offscreen Document Just to Play a Goat Sound #javascript #showdev #sideprojects #webdev So I built a Chrome extension that does one very stupid thing: it waits a random amount of time, then screams at you like a goat if you don't dismiss the notification fast enough. Simple idea. Should've been a simple build. It was not, because Manifest V3 said no.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at DEV.to (Top).
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