FEO details.js

/**
 * This is the signature of the browser's built in onerror handler
 * @param  {string} message Error message
 * @param  {string} file    Source file where the script threw an error
 * @param  {number} line    Line number
 * @param  {number} column  Column number
 * @param  {Error}  error   Error object
 * @return {Boolean}        Should the default event handler fire?
 */
function myOnErrorHandler(message, file, line, column, error) {
	const record = {
		message,
		file,
		line,
		column,
		stack: error.stack,
		name: error.name,
	};

	...
	sendError(record);
};