使用 JavaScript 调用浏览器 X 按钮

Question

提出这个问题是因为。问题可能是，该页面设计为仅当用户单击浏览器 X 按钮时才生成确认警报。我知道window.close()会关闭当前浏览器window这可能和点击浏览器X不一样window。有没有什么办法，可能用 JavaScript 在浏览器 X 按钮上重新创建点击操作，就好像真实用户会做的那样？

Answer 1

window.close()

This method is only allowed to be called for windows that were opened by a script using the window.open() method. If the window was not opened by a script, the following error appears in the JavaScript Console: Scripts may not close windows that were not opened by script. Mozilla Developer Network: window.close()

所以，没有办法通过 javascript 关闭浏览器，但是如果你不想触发一些应该在 window 关闭时执行的代码，试试这个：

//plain js
window.onunload();

//plain js
window.onbeforeunload();

//jQuery
$(window).unload();

或者如果您想在用户尝试关闭时执行代码 window，试试这个：

window.onbeforeunload = function(){
   // Do something
}
// OR
window.addEventListener("beforeunload", function(e){
   // Do something
}, false);

window.onunload = function(){
   // Do something
}
// OR
window.addEventListener("unload", function(e){
   // Do something
}, false);

// jQuery
$(window).unload(function(){
   // Do whatever you need
});

Since 25 May 2011, the HTML5 specification states that calls to window.alert(), window.confirm(), and window.prompt() methods may be ignored during this event. See the HTML5 specification for more details. MDN | window.onbeforeunload

这些事件按以下顺序触发：

window.beforeunload（可取消事件）
window.pagehide
window.unload

使用 JavaScript 调用浏览器 X 按钮

Invoke browser X button with JavaScript

javascript

browser

jquery

dom-events