lol... Next time you can use </> or markdown format to properly format your code. So été.
Could you provide a full recreation script as described in About the Elasticsearch category. It will help to better understand what you are doing. Please, try to keep the example as simple as possible.
A full reproduction script will help readers to understand, reproduce and if needed fix your problem. It will also most likely help to get a faster answer.
Specifically your tests around the html_strip char filter.