TypeError: self.l2sx5zk1ry8lghl7 is not a function

## Error

```
self.l2sx5zk1ry8lghl7 is not a function
```

## Stack trace

```
<anonymous>:1 in HTMLDocument.<anonymous>
```

## Tracking Details
- **Project**: exercism-js
- **Sentry**: [TypeError: self.l2sx5zk1ry8lghl7 is not a function](https://thalamus-ai.sentry.io/issues/113934263/)
- **Culprit**: HTMLDocument.<anonymous>(<anonymous>)
- **First seen:** Apr 21, 2026