dx-base's three commits from research-gallery-plugin-studio (the runtime loader, check:origins and
its lint pass) apply here unchanged: the code is byte-identical to that branch. What differs is what
the two settings point at on this route. The Research Gallery is the research site the team's
dx-maps container serves, and the maps load from the container's published tree, which the research
subdomain serves at /dx-maps (the Studio's host serves the same tree at /cdn/dx-maps; both send
CORS). The comments, .env.example and DX-MAPS-GALLERY.md now say so, with this route's laptop
values (research.localhost:4615, as compose.laptop.yaml already sets).
DX-MAPS-GALLERY.md's "Run it" said no .env is needed for /research. That stopped being true when the
default maps host was removed, so it now names the one setting the maps need.
check:origins: 15 problems on research-gallery-subdomain before, PASS (306 files) after.
fa3591ca9b