Question

因此

我需要自动点击<条码>。

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援引这一点的法典是

$(window).bind( beforeunload , function() {
  return  Leave page? ;
  //Click prompt code goes here.
  $(window).unbind();
});

If I take away return Leave page? ; then the iframed page overrides the top frame and the user is struck with an unknown site, maybe there s another way to do this?

Answer 1

实际情况见<代码>onload。活动:

$(window).bind( beforeunload , function() {
      return  Leave page? ;
});

Answer 2

不是自动点击,而是检查你是否能够自动卸下<代码>window.on beforeunload。这比试图在模式窗口的路口把点击到特定纽顿最容易。

Answer 3

I agree with Thiefmaster. Alternative is to replace the alert, prompt or confirm if that is what is used:

window.confirm=function() {
  // here you do what you want
}

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