@lidel has the github thread for this: https://github.com/ipfs/go-ipfs/issues/7392
The discussion on manifests is also related: https://github.com/ipfs/go-ipfs/issues/6214
We'd like to discuss who is interesting in collaborating on this and enabling this on their infrastructure, with the goal that SPAs and other front end web app frameworks would "just work" on any IPFS http gateway, without having to use nginx or another proxy layer.