Decoding jquery.rd-mailform.min.c.js plugin

Does anyone know how to decode this file:

jquery.rd-mailform.min.c.js

It seems to be either encoded, or, rather, obfuscated, starting with

var _0xe86e = ["x6Ax51x75x65x72x79",....
(function (_0x625ex1,....

Hex decoders are not much of a help with this file, that is why I am thinking that it is obfuscated code.

It is a jquery plugin which converts select into ul dropdown, fails without throwing any error on IE11 but works OK on Firefox and Chrome.

Thanks!