Loading gets bulletproof

We chased down a family of rare but painful loading failures - the kind where Playcode showed a spinner and simply never finished. All fixed today:

• A freeze on certain networks and privacy settings. A stylesheet request could block the whole page from rendering on devices where third-party requests hang. Pages now render regardless, every time.
• The editor recovers stuck browser storage by itself. If your browser's local database wedges (an old tab holding a lock, strict privacy modes), Playcode now detects it in seconds, repairs it, and continues - your work lives on our servers, so nothing is lost.
• The preview says so instead of spinning. If the preview engine can't start on a slow connection, you now get a clear retry button within seconds instead of an endless spinner.
• Clearer sign-in errors. If an ad blocker or filtered network breaks Google sign-in or the human-check, the dialog now tells you what to do instead of silently resetting.

If loading ever felt stuck for you before - it wasn't your device, and it's fixed. Thanks to the users whose reports led us straight to it.