ドキュメント › Apps & Sync › "Offline-ready" indicator
"Offline-ready" indicator
最終更新 June 10, 2026 · 約3分で読めます
The "Ready to use offline" message you see the first time you open Slima — what is it, and do you need to do anything?

What it does
The first time you open Slima (Web / PWA / Desktop):
- A Service Worker starts downloading Slima's code and assets into local cache
- The download takes a moment (depends on your network)
- When done, a one-time toast appears: "Ready to use offline ✓"
After that:
- No need to re-download program assets each time
- Slima opens and reaches the editor even with no network
- Each launch is faster
What to do after seeing it
Nothing required. If you want to confirm, you can:
- Just keep using it normally
- Try opening Slima with the network off, to verify it works
Didn't see this message?
Possible reasons:
- Not your first time — Slima already cached, so it won't prompt again
- Just updated — a large version update may trigger it once more
Suspect the cache is broken
If Slima behaves oddly and you suspect a corrupt local cache:
- A hard refresh:
⌘⇧R/Ctrl Shift R— this re-registers the Service Worker and re-caches - After re-caching, "Ready to use offline" appears again
Technical background: Service Worker
Slima uses a Service Worker for offline-first caching:
- Web / PWA: uses the browser's Service Worker
- Desktop: the app bundles assets itself, no Service Worker needed
The user experience is the same either way — install once, work offline.
Related
Slimaで試してみる
Slimaを開く
アプリを開いて、自分の作品で同じ手順をたどってみてください。無料で始められます。クレジットカードは不要です。
この記事は役に立ちましたか?