1 files changed, 11 insertions, 0 deletions
diff --git a/js/src/tests/ecma_6/Proxy/regress-bug950407.js b/js/src/tests/ecma_6/Proxy/regress-bug950407.js
new file mode 100644
index 0000000000..bb4a71eb04
--- /dev/null
+++ b/js/src/tests/ecma_6/Proxy/regress-bug950407.js
@@ -0,0 +1,11 @@
+var ab = new ArrayBuffer(5);
+var p = new Proxy(ab, {});
+var ps = Object.getOwnPropertyDescriptor(Object.prototype, "__proto__").set;
+var threw = 0;
+try {
+    ps.call(p, {});
+} catch(ex) {
+    threw = 1;
+}
+
+reportCompare(1, threw, "Setting __proto__ on a proxy to an ArrayBuffer must throw.");