1 files changed, 16 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/bug1148973-1.js b/js/src/jit-test/tests/ion/bug1148973-1.js
new file mode 100644
index 0000000000..201b9466f2
--- /dev/null
+++ b/js/src/jit-test/tests/ion/bug1148973-1.js
@@ -0,0 +1,16 @@
+Object.defineProperty(this, "x", { get: decodeURI, configurable: true })
+try {
+    String(b = new Proxy(function() { }, {
+        get: function(r, z) {
+            return x[z]
+        }
+    }))
+} catch (e) {};
+var log = "";
+evaluate(`
+try {
+    function x() {}
+    assertEq(String(b), "function () {}");
+} catch (e) { log += "e"; }
+`);
+assertEq(log, "e");