The cap-5 shell's "Simple Research" tab rendered an error panel instead of
the map, in both trees:
Could not load <doxa-research-map> from ../../doxa-research-map/
doxa-research-map.js
StackLayout already anchored sibling-bundle srcs to the tree root, but it
anchored on the /doxa-maps/ segment of window.location.pathname. The studio
mounts at the SERVER ROOT (/index.html), which has no such segment, so the
lookup missed and the literal '../../' was returned untouched. The browser
resolved it against '/', where '../' cannot climb, and requested
/doxa-research-map/doxa-research-map.js — 404, both children, empty stack.
That is why it survived: every gate and every screenshot used a LEAF url,
and the studio is the one host that is not one. The same composite at its
own leaf renders perfectly.
resolveBundleSrc now falls back to bundleTreeRoot() — the bundle's OWN
script URL, which rollup rewrites to document.currentScript.src in the IIFE
build. That is a fact about where the code came from, not a guess about
where the page is, which is the lesson stack-demo.vue wrote down when this
defect appeared for the third time. It returns null in dev ESM and for any
non-<name>/<name>.js layout, so it never guesses. The pathname rule stays
FIRST and the untouched-string fallback stays LAST, so every path that
worked before is byte-identical: this can still only fix a path, never
break one.
research-map-plus-grid also adopts stack-demo's bundleSrc() dev/prod
helper. In dev, vite serves entries at /plugin-designs/<bundle>/index.js and
there is no <bundle>/<bundle>.js to reach, so the dev surface 404'd too.
import.meta.env.DEV is statically replaced, so the built output is
byte-identical to the literal it replaces.
Verified in a browser against the built tree, reading the screenshots:
studio root -> Simple Research paints the world map with its prayer legend,
on the dev server too. Negative-tested: disabling the new fallback and
rebuilding restores the exact 404 and the empty canvas.
No regression across every StackLayout consumer — rmpg shallow leaf, rmpg
deep default/ leaf (the case the pathname rule was written for),
spa -> Simple Research, dashboard-plus-grid, stack-demo — and all seven
studio dashboards. 7/7 pre, 22/22 bundles, 18/18 post.
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