1 files changed, 11 insertions, 0 deletions
diff --git a/viewer/tests/importmap-hooks.mjs b/viewer/tests/importmap-hooks.mjs
new file mode 100644
index 0000000..3769c21
--- /dev/null
+++ b/viewer/tests/importmap-hooks.mjs
@@ -0,0 +1,11 @@
+// Node module-resolution hook: resolve bare specifiers with the page's import map.
+let map;
+export function initialize(data) { map = data; }
+export async function resolve(spec, ctx, next) {
+  for (const [k, v] of Object.entries(map.imports)) {
+    if (spec === k || (k.endsWith('/') && spec.startsWith(k))) {
+      return { url: new URL(v + spec.slice(k.length), map.base).href, shortCircuit: true };
+    }
+  }
+  return next(spec, ctx);
+}