oneOf with arrayOf in IE11

[ericyliu]

oneOf seems to be order dependent and not working as intended when supplied with arrayOf as one of the arguments

In IE11:
oneOf(arrayOf(mapping()), boolean) breaks when field is a boolean

oneOf(boolean, (arrayOf(mapping())) breaks when field is an array

The error message by validated is:
Unable to get property 'split' of undefined or null reference

Edit Nevermind this happens with all oneOfs, regardless if there is an arrayOf inside or not

[pronebird]

Hi,

Is it in IE11 only? Do you mind to provide a jsbin or something to reproduce this issue?