1 files changed, 35 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/bug1480390.js b/js/src/jit-test/tests/debug/bug1480390.js
new file mode 100644
index 0000000000..7ad90c67cd
--- /dev/null
+++ b/js/src/jit-test/tests/debug/bug1480390.js
@@ -0,0 +1,35 @@
+var g = newGlobal({newCompartment: true});
+g.parent = this;
+g.eval("new Debugger(parent).onExceptionUnwind = function () {};");
+
+function* wrapNoThrow() {
+    let iter = {
+	[Symbol.iterator]() {
+            return this;
+	},
+	next() {
+            return { value: 10, done: false };
+	},
+	return() { return "invalid return value" }
+    };
+    for (const i of iter)
+	yield i;
+}
+
+function foo() {
+    for (var i of [1,2,3]) {
+	for (var j of [4,5,6]) {
+	    try {
+		for (const i of wrapNoThrow()) break;
+	    } catch (e) {}
+	}
+	for (var j of [7,8,9]) {
+	}
+    }
+}
+
+for (var i = 0; i < 10; i++) {
+    try {
+	foo();
+    } catch(e) {}
+}