code: function (id_token) {
      var jws = new KJUR.jws.JWS();
      jws.parseJWS(id_token);
      return [jws.parsedJWS.headS, jws.parsedJWS.payloadS, jws.parsedJWS.si];
    }
docs: Splits the ID Token string into the individual JWS parts
  @param  {string} id_token  ID Token
  @returns {Array} An array of the JWS compact serialization components (header, payload, signature)