dpgkg42484 2014-12-05 05:46
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防止浏览器和警告，严格的方式需要

I need to prevent the user to switch back to previous pages strictly. I show you example coding as follows:

 <html>
 <head>
 <script type="text/javascript">   

/* prevent back  */
window.history.forward();
    function prevent()
    {
window.history.forward(); 
    }


/* warning on unload */
window.onbeforeunload = function (e) { var message = 'Are you sure ?'; if (typeof e == 'undefined') { e = window.event; } if (e) { e.returnValue = message; } return message; }


 </script>
 </head>
    <body onload="prevent();" onpageshow="if (event.persisted) prevent();" onunload="">
        <!--content here-->
    <a href="in.html">in</a>
    </body>
 </html>

The above page have link to another page, if i click back on that second page, it come back to this first page and showing warning and then move to second page;

Second page:

<a href="hello.html">hello</a>

I added warning script for some reason.

Now, what i need exactly is. When prevent back working, warning script should not work.

1.When user unload a page, should show warning script 2.when prevent back function unload the page, should not show warning script

Is there any way possible to disable going back from a page in all the way, any strict way? the above coding is not much strict. it will move forward on getting back.

Thanks.

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1条回答 默认 最新

  • dream_wu2015 2014-12-05 06:47
    关注

    Yeah, boi.

    But seriously, this baby don't got back

    page 1

    <html>
    <head>
         <title>if you go, don't come back</title>
     </head>
     <body>
            <!--content here-->
         <a href="pageofnoreturn.html#noBack">in</a>
    </body>
</html>

    pageofnoreturn.html

    <html>
    <head>
         <title>Stay put, or else</title>
     </head>
     <body>
         <h1>welcome to purgatory</h1>
        <script>
            if (location.hash == '#noBack') {
                history.pushState(null, '', '#sit');
                //whatever hashes that suit your project
                window.onhashchange = function() {
                    if (location.hash == '#noBack') {
                        history.pushState(null, '', '#sit');
                    }
                }
            }
        </script>
    </body>
</html>
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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