Redirect just the home page (how?)

How does one redirect just the home page?

In my scenario I want users who go to my website's home page (ex. zislis.com) to get redirected to zislisgroup.com. But any other URL for zislis.com is not redirected. I'm aware of the URL Mapping tool but I don't think that's an option for the home page since the mapping only kicks in when there is no real mapping found. (i.e. the home page will always have a real mapping.)

I tried embedding a client-side meta refresh in the home page's header but that was a disaster since Squarespace's editor dutifully executes the redirect which hoses the editor. Had to enable safe mode and remove the meta tag in order to regain control.

Thoughts?

Hover "Home" > Click Gear icon > Advanced > Paste this code to right box

<script>
window.location.href = "https://zislisgroup.com";
</script>

yay, this worked for my redirect question, thanks!