关闭标签页/浏览器之前的确认

Question

如何在用户离开gmail前向用户询问确认信息？

我在各个地方搜索了这个问题，但他们提到的只是使用javascript window.unload和window.onbeforeunload。而且，由于它被阻塞，大多数情况下在chrome中都不起作用。

Answer 1

尝试这个：<script>window.onbeforeunload = function (e) {&nbsp; &nbsp; e = e || window.event;&nbsp; &nbsp; // For IE and Firefox prior to version 4&nbsp; &nbsp; if (e) {&nbsp; &nbsp; &nbsp; &nbsp; e.returnValue = 'Sure?';&nbsp; &nbsp; }&nbsp; &nbsp; // For Safari&nbsp; &nbsp; return 'Sure?';};</script>

Answer 2

尝试这个：<script>&nbsp; &nbsp; window.onbeforeunload = function(e) {&nbsp; &nbsp; &nbsp; &nbsp;return 'Dialog text here.';&nbsp; &nbsp; };</script>这里更多信息MDN。

Answer 3

我读了关于设置为“ 好的”的答案的评论。大多数用户要求按钮和某些链接单击。这里，将在现有代码中再增加一行。<script type="text/javascript">&nbsp; var hook = true;&nbsp; window.onbeforeunload = function() {&nbsp; &nbsp; if (hook) {&nbsp; &nbsp; &nbsp; return "Did you save your stuff?"&nbsp; &nbsp; }&nbsp; }&nbsp; function unhook() {&nbsp; &nbsp; hook=false;&nbsp; }调用unhook（）onClick查找要允许的按钮和链接。例如<a href="#" onClick="unhook()">This link will allow navigation</a>