diff --git a/tests/test_frontier_compare_wave1.py b/tests/test_frontier_compare_wave1.py
index a57ac86d..b0343a76 100644
--- a/tests/test_frontier_compare_wave1.py
+++ b/tests/test_frontier_compare_wave1.py
@@ -81,8 +81,18 @@ def test_frontier_compare_report_viewer_exists() -> None:
     viewer = Path("evals/frontier_compare/ui/report_viewer.html")
     text = viewer.read_text(encoding="utf-8")
 
-    assert "Frontier Compare" in text
-    assert "Drop report JSON" in text
-    assert "No network calls" in text
+    # Case-insensitive substring checks — pin the viewer's load-bearing
+    # affordances and trust-boundary copy without coupling to verbatim
+    # phrasing.  Earlier verbatim checks ("Drop report JSON",
+    # "No network calls") broke when the viewer's copy was refreshed
+    # to "Drop JSON report" / "no network calls" without any change in
+    # behavior.
+    lowered = text.lower()
+    assert "frontier compare" in lowered
+    # Drop-zone affordance: order-independent — both tokens must be
+    # present so a user can paste a report into the viewer.
+    assert "drop" in lowered and "json" in lowered
+    # Trust boundary: viewer must remain network-free.
+    assert "no network calls" in lowered
     assert "fetch(" not in text
     assert "XMLHttpRequest" not in text