code: function FileMakerServerError(code, url) {
    this.url = url;
    this.error = code;
    this.message = getMessge(code);
    this.name = 'FileMakerServerError';
    console.log('FileMaker Error Code: ',error);
    const err = Error(this.message); // http://es5.github.io/#x15.11.1
    this.stack = err.stack;
    this.isTransient = isTransient(code);
  }
docs: FileMaker Error - based on https://coderwall.com/p/m3-cqw
  @param code
  @param msg
  @constructor