javascript - if window is popup - Stack Overflow

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Is there a way to determine if the current window is a popup? This is what I have right now but for some reason it is not working. I am trying to make sure that certain pages are only shown in popup window.

if(!opener)
window.location = 'error.php';

The value of opener is [object DOMWindow] even though the window is not popup.

Is there a way to determine if the current window is a popup? This is what I have right now but for some reason it is not working. I am trying to make sure that certain pages are only shown in popup window.

if(!opener)
window.location = 'error.php';

The value of opener is [object DOMWindow] even though the window is not popup.

• javascript

Share Improve this question Follow edited Aug 6, 2011 at 6:18 Eyad Fallatah asked Aug 5, 2011 at 22:24 Eyad FallatahEyad Fallatah 1,94844 gold badges2424 silver badges3636 bronze badges 2

• Do you get an error when it doesn't work? what is the value of opener when you think it should work but it doesn't? – Dan Davies Brackett Commented Aug 6, 2011 at 0:02
• The value of opener is [object DOMWindow] even though the window is not popup. – Eyad Fallatah Commented Aug 6, 2011 at 6:18

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1 Answer 1

Sorted by: Reset to default 8

Assuming you're opening popup windows yourself- set a flag:

var myWindow = window.open(...);
myWindow.isPopup = true;

then, in your popup window, check for the flag:

if (!window.isPopup) {
    window.location = 'error.php';
}

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