fix core report inspection and vendored roots

packages/casan-harness/tests/local-viewer-tests.py

@@ -11,6 +11,7 @@ import unittest
 
 
 MODULE = Path(__file__).resolve().parents[1] / "scripts" / "python" / "local_report.py"
+APP_JS = Path(__file__).resolve().parents[1] / "assets" / "local-viewer" / "app.js"
 SPEC = importlib.util.spec_from_file_location("casan_local_report", MODULE)
 REPORT = importlib.util.module_from_spec(SPEC)
 assert SPEC.loader
@@ -153,6 +154,13 @@ class LocalReportTests(unittest.TestCase):
         self.assertEqual(report["verdict"], "not_found")
         self.assertFalse(report["source"]["trace_found"])
 
+    def test_trace_inspection_reveals_the_loaded_dossier(self):
+        script = APP_JS.read_text(encoding="utf-8")
+        self.assertIn('id="run-dossier"', script)
+        self.assertIn('tabindex="-1"', script)
+        self.assertIn('dossier.focus({ preventScroll: true })', script)
+        self.assertIn("dossier.scrollIntoView({", script)
+
 
 if __name__ == "__main__":
     unittest.main()