The spec for eval (http://es5.github.io/x15.1.html#x15.1.2.1) says "If Type(x) is not String, return x." and that's exactly what's happening here -- it gets {code: ...} and does nothing.
The spec for eval (http://es5.github.io/x15.1.html#x15.1.2.1) says "If Type(x) is not String, return x." and that's exactly what's happening here -- it gets {code: ...} and does nothing.