1 files changed, 9 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/gc/bug-1628440.js b/js/src/jit-test/tests/gc/bug-1628440.js
new file mode 100644
index 0000000000..e128fcb7ac
--- /dev/null
+++ b/js/src/jit-test/tests/gc/bug-1628440.js
@@ -0,0 +1,9 @@
+// |jit-test| error: ReferenceError
+gczeal(10, 2);
+let cleanup = function(iter) {}
+let key = {"k": "this is my key"};
+let fg = new FinalizationRegistry(cleanup);
+let object = {};
+fg.register(object, {}, key);
+let success = fg.unregister(key);
+throw new ReferenceError();