NotAllowedError: Failed to execute 'writeText' on 'Clipboard': Document is not focused.

## Error

```
Failed to execute 'writeText' on 'Clipboard': Document is not focused.
```

## Stack trace

```
<anonymous>:1
```

## Tracking Details
- **Project**: exercism-js
- **Sentry**: [NotAllowedError: Failed to execute 'writeText' on 'Clipboard': Document is not focused.](https://thalamus-ai.sentry.io/issues/103925054/)
- **Culprit**: ?(<anonymous>)
- **First seen:** Mar 16, 2026