Sorry, just don't. It won't work, it will be painful. You can integrate your Single Page App (SPA) using iframe (this has its own caveats though namely resizing).
I got an error with webpackJsonp not having the proper type, I would guess that Qualtrics used their own webpack code (this is sensible for their scale) and somehow I got version mismatch, or just one can't have two webpack apps applications on the same site (which is also sensible). Life is tough without proper namespaces.
Note
If you managed to avoid iframes do let me know! I'll happily update this post and link to your solution :)
If this sound like black magic (or just something you'd rather avoid doing), do get in touch I might help you with whatever you need :). My address is jacek@askesis.pl.