1 files changed, 17 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/bug807623.js b/js/src/jit-test/tests/basic/bug807623.js
new file mode 100644
index 000000000..ce16ffd41
--- /dev/null
+++ b/js/src/jit-test/tests/basic/bug807623.js
@@ -0,0 +1,17 @@
+var objectProxy = new Proxy({}, {});
+var functionProxy = new Proxy(function() {}, {});
+
+assertEq(Object.prototype.toString.call(objectProxy), '[object Object]');
+assertEq(Object.prototype.toString.call(functionProxy), '[object Function]');
+try {
+  Function.prototype.toString.call(functionProxy);
+  assertEq(true, false);
+} catch (e) {
+  assertEq(!!/incompatible/.exec(e), true);
+}
+try {
+  Function.prototype.toString.call(objectProxy);
+  assertEq(true, false);
+} catch (e) {
+  assertEq(!!/incompatible/.exec(e), true);
+}