Can you index a video node?

### What is your expected behavior?

I attempted to modify my config file to allow for indexing a video tag but it wasn't indexed.

`nodes_to_index: 'p,ul,div,h1,h2,h3,h4,h5,h6,table,video'`

Is this the expected behavior? And if so is there a workaround to index a video?

Start by tracing how the nodes_to_index configuration is handled for the listed HTML elements, especially video, and check whether the issue is documented or covered by an existing test. Done means establishing whether video nodes are supported and recording either the expected behavior and workaround or the requirements for adding support.

Written by the indexing model from the issue text.