Allow serving requests from a subpath (for reverse proxying) #16
Description
I'm looking at using this project as part of another (https://dmd.tanna.dev) in which I'm looking to reverse proxy this project under a sub-path.
This can be seen in i.e. https://dependency-management-data-example.fly.dev/datasette/dmd?sql=select+*+from+metadata which reverse proxies from the datasette process' HTTP server under a sub-path.
I believe this will require changes in this project to enable it, by injecting in the subpath to i.e. /assets URLs, which would then be i.e. /sql-studio/assets