onbeforeunload事件上的jQuery.ajax无法正常工作 [英] jQuery.ajax on onbeforeunload event not working

问题描述

我有一个这样的php页面

I have one php page like this

<script type="text/javascript" src="js/jquery.min.js"></script> 
<script type="text/javascript">
window.onbeforeunload  = saveBeforeExit;
function saveBeforeExit() {  
    jQuery.ajax({
        url:"truncate_logs.php",
        type:"GET",
        async:false,
        success:function(data){

        }
    })
}
</script>

//I am creating 'logs_".$t.".xls' here

<?php
header("Location: log_files/logs_".$t.".xls");
?>

我的问题在这里

Location:onbeforeunload不会被调用.

推荐答案

onbeforeunload无法正常工作，因为编码不正确.您需要从onbeforeunload返回一个字符串，该字符串将用作出现的窗口中的消息.

onbeforeunload is not working because it isn't coded properly. You need to return a string from onbeforeunload , which will be used as the message in the window that will appear.

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