diff --git a/spec/tests/test-hyperscript-behavioral.sx b/spec/tests/test-hyperscript-behavioral.sx
index a7c2e64c..bb9d9c68 100644
--- a/spec/tests/test-hyperscript-behavioral.sx
+++ b/spec/tests/test-hyperscript-behavioral.sx
@@ -1120,7 +1120,13 @@
       (hs-activate! _el-input)
     ))
   (deftest "unsupported element: bind to plain div errors"
-    (error "SKIP (untranslated): unsupported element: bind to plain div errors"))
+    (hs-cleanup!)
+    (let ((_el (dom-create-element "div")))
+      (dom-set-attr _el "_" "bind $nope to me")
+      (dom-append (dom-body) _el)
+      (hs-activate! _el)
+      (assert (nil? (host-get (host-global "window") "$nope"))))
+  )
   (deftest "variable drives class: setting variable adds/removes class"
     (hs-cleanup!)
     (let ((_el-div (dom-create-element "div")))
@@ -14096,7 +14102,13 @@ end")
       (hs-activate! _el-d2)
     ))
   (deftest "local variable in when expression produces a parse error"
-    (error "SKIP (untranslated): local variable in when expression produces a parse error"))
+    (hs-cleanup!)
+    (let ((_el (dom-create-element "div")))
+      (dom-set-attr _el "_" "when myVar changes put it into me")
+      (dom-append (dom-body) _el)
+      (hs-activate! _el)
+      (assert= (first (hs-compile "when myVar changes put it into me")) (quote when-feat-no-op)))
+  )
   (deftest "math on tracked symbols works"
     (hs-cleanup!)
     (let ((_el-div (dom-create-element "div")))
diff --git a/tests/playwright/generate-sx-tests.py b/tests/playwright/generate-sx-tests.py
index 4f1609af..257ce68b 100644
--- a/tests/playwright/generate-sx-tests.py
+++ b/tests/playwright/generate-sx-tests.py
@@ -415,6 +415,24 @@ MANUAL_TEST_BODIES = {
         '          (hs-activate! _el))',
         '        (assert (nil? caught))))',
     ],
+    # bind: bind $nope to a plain div does nothing — $nope stays nil
+    "unsupported element: bind to plain div errors": [
+        '    (hs-cleanup!)',
+        '    (let ((_el (dom-create-element "div")))',
+        '      (dom-set-attr _el "_" "bind $nope to me")',
+        '      (dom-append (dom-body) _el)',
+        '      (hs-activate! _el)',
+        '      (assert (nil? (host-get (host-global "window") "$nope"))))',
+    ],
+    # when: non-attribute reference in when...changes is a parse error (when-feat-no-op)
+    "local variable in when expression produces a parse error": [
+        '    (hs-cleanup!)',
+        '    (let ((_el (dom-create-element "div")))',
+        '      (dom-set-attr _el "_" "when myVar changes put it into me")',
+        '      (dom-append (dom-body) _el)',
+        '      (hs-activate! _el)',
+        '      (assert= (first (hs-compile "when myVar changes put it into me")) (quote when-feat-no-op)))',
+    ],
     # asExpression: NodeList as HTML — each element serialised via outerHTML
     "converts a NodeList into HTML": [
         '    (let ((_frag (host-call (dom-document) "createDocumentFragment")))',