diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/null-filename-Error.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/null-filename-Error.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,11 @@
+// Compiling a script with null filename does not break the Error constructor.
+
+var exc = null;
+try {
+    evaluate("throw Error('pass');", {fileName: null});
+} catch (x) {
+    exc = x;
+}
+assertEq(exc.constructor, Error);
+assertEq(exc.message, "pass");
+assertEq(exc.fileName, "");