easyError static method

Implementation

static String easyError() {
  var script = "if (window.BootpayEasyError && window.BootpayEasyError.postMessage) { BootpayEasyError.postMessage(JSON.stringify(data)); }";
  // var script = "BootpayError.postMessage(JSON.stringify(data));";
  return "else { $script };";
}