1 files changed, 10 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/modules/bug-1283448.js b/js/src/jit-test/tests/modules/bug-1283448.js
new file mode 100644
index 000000000..9ee6217ab
--- /dev/null
+++ b/js/src/jit-test/tests/modules/bug-1283448.js
@@ -0,0 +1,10 @@
+// |jit-test| error: TypeError
+
+let moduleRepo = {};
+setModuleResolveHook(function(module, specifier) {
+        return moduleRepo[specifier];
+});
+let a = moduleRepo['a'] = parseModule("var x = 1; export { x };");
+let b = moduleRepo['b'] = parseModule("import { x as y } from 'a';");
+a.__proto__ = {15: 1337};
+b.declarationInstantiation();