Force browser requests to respect rewritten path in nginx

I’ve set up nginx as a back proxy. This back proxy rewrites the path of https://<my-domain>/artifactory to essentially stripping off the path. This works on the first request, but when the browser loads the index.html, that file mentions a bunch of assets with relative paths like /ui/css/app.c2d4f448.css. When the browser is requesting them from the server it is requesting with http://<my-domain>/ui/css/app.c2d4f448.css instead of with the /artifactory path. Is there any way to instruct the browser to append a path to the host before making it’s requests, via headers or something?