javascript - Firefox 引导插件中的 CustomEvent 错误

Question

来自document.createEvent

The createEvent method is deprecated. Use event constructors instead.

在bootstap.js

// this works
let event = window.document.createEvent('Event');
event.initEvent('main-unload',false,false);
window.dispatchEvent(event);

// this doesn't work
let event = new CustomEvent('main-unload', {"detail":{"hazcheeseburger":true}});
window.dispatchEvent(event);
//Console error: 1404023846296  addons.xpi  WARN    Exception running bootstrap method shutdown on ***addon-id****

我错过了什么？

Answer 1

您缺少 CustomEvent 构造函数。 bootstrap.js 代码没有其中之一，只有 Windows 有。

以下应该有效:

let event = new (window.CustomEvent)('main-unload',
                                     {"detail":{"hazcheeseburger":true}});