1 files changed, 29 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/modules/bug-1443555.js b/js/src/jit-test/tests/modules/bug-1443555.js
new file mode 100644
index 0000000000..cbb1c5f5dd
--- /dev/null
+++ b/js/src/jit-test/tests/modules/bug-1443555.js
@@ -0,0 +1,29 @@
+// |jit-test| error: TypeError
+
+"use strict";
+
+setJitCompilerOption("baseline.warmup.trigger", 0);
+
+let mainSrc = `
+import A from "A";
+
+const a = A;
+
+function requestAnimationFrame(f) { Promise.resolve().then(f); };
+
+requestAnimationFrame(loopy);
+a = 2;
+function loopy() {
+    A;
+}
+`;
+
+let ASrc = `
+export default 1;
+`;
+
+registerModule('A', parseModule(ASrc));
+
+let m = parseModule(mainSrc);
+m.declarationInstantiation()
+m.evaluation();