# `DELETE /category/{id}/image`

Protected. Requires a valid session cookie (`credentials: 'include'`).

Delete category image

Removes the category's image. Sets thumbW, thumbH, thumbHash back to null.
Auth like GET /category/tree — user must be authorized for the category's company.


## Path parameters

| Param | Required | Type | Description |
|-------|----------|------|-------------|
| `id` | yes | integer | Category id |

## Signals

On success, emits SSE signal: `category` (see [`GET /events`](../events.md)).

## Response `200`

Image removed

```json
{
  "category": {
    "id": 1,
    "thumbW": 1,
    "thumbH": 1,
    "thumbHash": "…"
  }
}
```

## Errors

| Status | Description |
|--------|-------------|
| 401 | Unauthorized — `{"error":"…"}` |
| 403 | Not authorized — `{"error":"…"}` |
| 404 | Category or image not found — `{"error":"…"}` |

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