# \&poster

Viewer-Side Option! ([`&view`](/advanced-settings/mixer-scene-parameters/view.md), [`&scene`](/advanced-settings/mixer-scene-parameters/scene.md), [`&room`](/advanced-settings/setup-parameters/room.md))

## Options

Example: `&poster=./media/bg_sample.webp`

| Value         | Description                                                    |
| ------------- | -------------------------------------------------------------- |
| (encoded URL) | takes an encoded URL, pointing to a CORS-accessible image file |

## Details

`&poster` lets you specify a poster image for videos that have not yet started playing (using the built-in HTML poster attribute). This flag takes an encoded URL, pointing to a CORS-accessible image file.

Example of the command:

```
https://vdo.ninja/?view=YbFmisR&poster=./media/bg_sample.webp&hideplaybutton
```

## Related

{% content-ref url="/pages/sxdUL42EjgzctNZ2ezqy" %}
[\&hideplaybutton](/advanced-settings/mixer-scene-parameters/and-hideplaybutton.md)
{% endcontent-ref %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.vdo.ninja/advanced-settings/mixer-scene-parameters/and-poster.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.