I have MyPage.aspx html page (generated using ASP.Net). When user tries to navigate away from this page, I need to close the window – user should not be able to go back or navigate to another page.
When I used window.close() inside window.onbeforeunload event, it asks for a confirmation to the user. “The webpage you are viewing is trying to close the window. Do you want to close the window?” On clicking “No” the user can escape the close attempt. Is there any way to forcefully close the window without giving an option to the user?
Reference:
How can I close a browser window without receiving the "Do you want to close this window" prompt?
Html javascript to open new window and close current window
"Unknown Exception" when cancelling page unload with "location.href"
Display confirmation popup with JavaScript upon clicking on a link
You can "trick" the browser like this:
window.onbeforeunload = function() {
window.open('', '_self', '');
window.close();
}
It seems to work in chrome/safari/ie/ff: http://jsbin.com/olijig/1
Firefox seems stubborn, but there might be another way to do the same in FF.
I should probably say that this technique is in no way standard and I don’t recommend it at all, and this code might break in many browsers besides firefox.
UPDATE
It actually works in Firefox too (latest version), but not older versions (I tried 3.6.1). You need to do some more testing to confirm the browser compatibility.
No, you can't. The user must be always capable of controlling whatever happens in his browser.
I'm not positive about this, but I believe if you have a window open another window, the parent window can close that child window. Would it be practical to have a landing page that opens your app in a separate window that could then close the window through javascript? Someone can probably elaborate more, as I haven't done this myself.
Related
I have request from the customer to adjust some old functionality in the system. The current file has href links that look like this:
#Name#
If you look the code above you see that target="_blank" page will be opened in the new browser window. However, user wants to be able to close that window if they click OK/Cancel button in page.detail.cfm. I tried using this code for closing the browser window:
var closeBtn = document.getElementById('btn_cancel');
closeBtn.addEventListener('click', cancel);
function cancel(){
window.close();
}
After I tested the code and clicked Cancel message in the dev tools looks like this:
Scripts may not close windows that were not opened by script.
I guess that window can't be closed if not previously opened with JavaScript. I'm not sure what would be the best approach to solve this issue? Thanks for your help.
Technically a script is not allowed to close a page that a user has opened as opposed to it being opened by a script itself. It's a browser security issue. I know there were some hacks for it but thing like this get patched pretty quick from what I can tell. You could technically open the window with a script instead with some sort of click event or such, but again this is a bit of a work around. Check this out https://developer.mozilla.org/en-US/docs/Web/API/Window/close
I want a popup window to close automatically as soon as the user minimizes the window. My code is as follows:
<a href="#" onclick="Popup=window.open('fb.html','Popup','toolbar=no,location=no,status=yes,menubar=no,scrollbars=no,resizable=no,width=620,height=400,left=230,top=23'); return false;">
any ideas?
There's no event that triggers when the window is minimized. The best you can do is to check the height and width at a set interval. Closing the browser window is trivial Popup.close() should do it.
See a post about programmatically opening and closing pop-ups.
For browser windows or tabs, I believe that you need the user to click a confirmation box (the confirmation is created by the browser as a security feature).
Added Think about your UX (User Experience) -- it is not usual for a user to think about minimizing a window. Perhaps you should provide a "close" button.
Also, investigate the various libraries such as Boostrap modal popups. They already have worked on the UX issues.
In my page when I click on a link a popup will be opened. In that popup, I have the close button. To close the window I am using simple JavaScript function as window.close().
This is working fine.
Now when I copy the URL of the popup link and open it in new window, I am not able to close the window.
In Firefox when using Firebug the warning given is:
'Scripts may not close windows that were not opened by script.'
Please help me out on any other alternative.
Firefox seems to answer that question: 'Scripts may not close windows that were not opened by script.'
This is a security measure. Imagine every site could close every other page you have open, that wouldn't work very well would it?
That's why only a parent window may close its children windows.
There may be a setting Firefox that allows windows not opened by script to be closed by script, but even if there is, what chance is there that your visitors will all have enabled this setting?
You can't work around this problem, it is how Firefox (and certainly other browsers) works. The only answer is to change your approach.
Why are you using windows as popups anyway? This has not been recommended for some time now and is mostly frowned upon. Popups that are actual windows may be blocked by popup-blockers.
You should probably use a modal popup instead of a window
I have an application, in that I want to close the entire browser on clicking on the close button from our application. I tried with the window.close() and self.close() functions but they will be closing the browser if the window is opened from window.open().
Please suggest to me how I can close the browser on clicking on the close button?
You can't. window.close() used to do that in a far past, but browsers don't allow that anymore, going from the concept of that a website should be able to stay open as long as it has to. Eg. a website doesn't end. If you log out, you don't close the window, you simply go back to the home page where you let the user log in again. Same with smartphone apps btw :-)
Most modern browsers will only let you close child windows of a parent. You cannot close the parent window through script.
I've got a page which open a new window fullscreen but it still has the other page (the one which re-directs) behind so when you close the new window you are taken back to a blank page.
Is there a way to open a new window and then close the tab which is now inactive?
Currently I have some javascript like this
window.open("http://website.co.uk");
Thanks
You can technically use window.close() on the opening tab, but browsers usually will not allow JavaScript to close windows that it has not opened. Can you redirect to some useful page that the user can use once they have closed the window?
If you can add some JavaScript code to the page being opened, I think you can use window.opener.close() to close the original window. I tested it in IE8, the browser will ask for confirm before close the original window.