Disable browser's back button

2018-12-31 06:38发布

站内问答 / JavaScript
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How to disable browser's BACK Button (across browsers)?

20条回答
孤独总比滥情好
2楼-- · 2018-12-31 06:56

Others have taken the approach to say "don't do this" but that doesn't really answer the poster's question. Let's just assume that everyone knows this is a bad idea, but we are curious about how it's done anyway...

You cannot disable the back button on a user's browser, but you can make it so that your application breaks (displays an error message, requiring the user to start over) if the user goes back.

One approach I have seen for doing this is to pass a token on every URL within the application, and within every form. The token is regenerated on every page, and once the user loads a new page any tokens from previous pages are invalidated.

When the user loads a page, the page will only show if the correct token (which was given to all links/forms on the previous page) was passed to it.

The online banking application my bank provides is like this. If you use the back button at all, no more links will work and no more page reloads can be made - instead you see a notice telling you that you cannot go back, and you have to start over.

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初与友歌
3楼-- · 2018-12-31 07:00

You should be using posts with proper expires and caching headers.

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千与千寻千般痛.
4楼-- · 2018-12-31 07:00

Even I faced the same situation before...and didn't have any help. try these things maybe these will work for you

in login page <head> tag:

<script type="text/javascript">
    window.history.forward();
</script>

in Logout Button I did this:

protected void Btn_Logout_Click(object sender, EventArgs e)      
{
    connObj.Close();
    Session.Abandon();
    Session.RemoveAll();
    Session.Clear();
    HttpContext.Current.Session.Abandon();
}

and on login page I have put the focus on Username textbox like this:

protected void Page_Load(object sender, EventArgs e)
{
    _txtUsername.Focus();
}

hope this helps... :) someone plz teach me how to edit this page...

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呛了眼睛熬了心
5楼-- · 2018-12-31 07:01

Try this code. Worked for me. It basically changes the hash as soon as the page loads which changes recent history page by adding "1" on URL. So when you hit back button, it redirects to same page everytime.

 <script type="text/javascript">
    var storedHash = window.location.hash;
    function changeHashOnLoad() { window.location.hash = "1";}
    window.onhashchange = function () {
        window.location.hash = storedHash;
    }
</script>

<body onload="changeHashOnLoad(); ">

</bod>
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情到深处是孤独
6楼-- · 2018-12-31 07:03

If you rely on client-side technology, it can be circumvented. Javascript may be disabled, for example. Or user might execute a JS script to work around your restrictions.

My guess is you can only do this by server-side tracking of the user session, and redirecting (as in Server.Transfer, not Response.Redirect) the user/browser to the required page.

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ら面具成の殇う
7楼-- · 2018-12-31 07:06

This question is very similar to this one...

You need to force the cache to expire for this to work. Place the following code on your page code behind.

Page.Response.Cache.SetCacheability(HttpCacheability.NoCache)
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