diff --git a/Source/JavaScriptCore/tests/stress/object-toString-with-proxy.js b/Source/JavaScriptCore/tests/stress/object-toString-with-proxy.js
new file mode 100644
index 0000000..855ee5e
--- /dev/null
+++ b/Source/JavaScriptCore/tests/stress/object-toString-with-proxy.js
@@ -0,0 +1,27 @@
+let foo = {};
+let properties = [];
+let p = new Proxy(foo, { get:(target, property) => {
+    properties.push(property.toString());
+    if (property === Symbol.toStringTag)
+        return "bad things";
+    return target[property];
+}});
+
+for (i = 0; i < 5; i++) {
+    if (p != "[object bad things]")
+        throw new Error("bad toString result.");
+
+    if (properties[0] !== "Symbol(Symbol.toPrimitive)" || properties[1] !== "valueOf" || properties[2] !== "toString" || properties[3] !== "Symbol(Symbol.toStringTag)")
+        throw new Error("bad property accesses.");
+
+    properties = [];
+}
+
+p = createProxy(foo);
+
+for (i = 0; i < 5; i++) {
+    let str = "bad things" + i;
+    foo[Symbol.toStringTag] = str;
+    if (p != "[object " + str + "]")
+        throw new Error("bad toString result.");
+}