1 files changed, 20 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/modules/bug-1681256.js b/js/src/jit-test/tests/modules/bug-1681256.js
new file mode 100644
index 0000000000..577060543f
--- /dev/null
+++ b/js/src/jit-test/tests/modules/bug-1681256.js
@@ -0,0 +1,20 @@
+// |jit-test| --enable-top-level-await;--more-compartments;
+let lfCode = `
+    var g = newGlobal();
+    g.debuggeeGlobal = this;
+    g.eval("(" + function () {
+        dbg = new Debugger(debuggeeGlobal);
+        dbg.onExceptionUnwind = function (frame, exc) {};
+    } + ")();");
+`;
+loadFile(lfCode);
+// use "await" so the module is marked as TLA
+loadFile(lfCode + " await ''");
+async function loadFile(lfVarx) {
+    try {
+        try { evaluate(lfVarx); } catch(exc) {}
+        let lfMod = parseModule(lfVarx);
+        lfMod.declarationInstantiation();
+        await lfMod.evaluation();
+    } catch (lfVare) {}
+}