I have a user who wants to add an `iframe` into a Kibana dashboard to display some data from a dashboard in his application alongside the Kibana dashboard. For various reasons, he can export the specific data in an `iframe`, but it can't easily be ingested into Elasticsearch.
Inasmuch as there is an official markdown specification, it allows for embedding html tags, so this **should** be as simple as creating a markdown visualization with the embedded `iframe` tag, but the markdown visualization simply shows the inserted code as text, like so:
```auto
```
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Unfortunately the flavor of markdown kibana supports doesn't support html tags - [https://www.elastic.co/guide/en/kibana/current/markdown-widget.html](https://www.elastic.co/guide/en/kibana/current/markdown-widget.html)
however you might develop a plugin to do this - [https://www.elastic.co/guide/en/kibana/current/plugin-development.html](https://www.elastic.co/guide/en/kibana/current/plugin-development.html)
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