How do you configure the "host-config"?

I am building a Streamlit app. Currently, the download button on st.dataframes is not working for my company environment. After some googling, I have found the following thread.

Problem with download button on st.dataframes

There is this comment from @Jesse in there. Apparently, all I have to do is to set this enforceDownloadInNewTab to true!

However, I have not been able to find how to set this value. As a desperate attempt, I have added the following to config.toml, but did not help.

[server]
enforceDownloadInNewTab = true   # did not work

So, is there any way to configure “host-config”, especially enforceDownloadInNewTab value?