[DEBUG] Log Exception Cause

[DEBUG] LogExceptionCause

Log exception cause, see https://github.com/tc39/proposal-error-cause

Verzia zo dňa 25.09.2021. Pozri najnovšiu verziu.

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// ==UserScript==
// @name              [DEBUG] LogExceptionCause
// @name:zh-CN        [DEBUG] 异常诱因日志
// @version           1.0.0.20210925
// @namespace         laster2800
// @author            Laster2800
// @description       Log exception cause, see https://github.com/tc39/proposal-error-cause
// @description:zh-CN 记录异常诱因，详见 https://github.com/tc39/proposal-error-cause
// @homepageURL       https://greasyfork.org/zh-CN/scripts/432924
// @supportURL        https://greasyfork.org/zh-CN/scripts/432924/feedback
// @license           LGPL-3.0
// @include           *
// @grant             none
// @run-at            document-start
// ==/UserScript==

(function() {
  'use strict'

  window.addEventListener('error', log)
  window.addEventListener('unhandledrejection', log)

  function log(event) {
    const cause = (event.error ?? event.reason)?.cause
    if (cause !== undefined) {
      console.error('↓ Error is caused by', cause)
    }
  }
})()