axe-core/lib/core/utils/frame-messenger/process-error.js

Accessibility engine for automated Web UI testing

import { postMessage } from './post-message';
import { createMessageId } from './message-id';

/**
 * Log, or post an error to the parent window
 * @param {window} win
 * @param {object} messageData
 */
export function processError(win, error, channelId) {
  if (!win.parent !== window) {
    return axe.log(error);
  }

  try {
    postMessage(
      win,
      {
        topic: null,
        channelId,
        message: error,
        messageId: createMessageId(),
        keepalive: true
      },
      true
    );
  } catch (err) {
    // Last resort, logging
    return axe.log(err);
  }
}