Topic on Extension talk:Html5mediator

Hello, I wonder if it's possible to make a template using this extension. Currently when I am trying to make a template:

<html5media height="600" width="900">File:{{{1}}}</html5media>

I am getting an error: Html5mediator: error loading file:"{{{1}}}"

File is .mp4, and it works when I use it without a template:

<html5media height="600" width="900">File:Name_of_the_file.mp4</html5media>

Any solutions?

Thanks. :)

Mediawiki version: 1.33.0

Btw is it possible to use this extension with .flv?