在卸载弹出窗口之前取消

Question

Did the behavior change in Chrome 51, where now not only that you cannot specify a custom message for the unload popup, but you cannot cancel the event at all?

It used to be possible to assign an empty function or null to the window.onbeforeunload, but that doesn't seem to work anymore in Chrome 51.

Thank you for any input!

Answer 1

自定义消息已删除，但事件本身存在： https : //www.chromestatus.com/feature/5349061406228480