javascript not showing alert

Question

This code is not showing me alert:-

<script type="text/javascript">
var wloc = window.parent.location;
var abcd = wloc.substring(0,24);
alert(wloc);
alert(abcd);
</script>

That's because `location` is not a string, it's a `location` object. — Felix Kling, Aug 15 '12 at 17:49
@FelixKling ok so how i can get the value of `window.parent.location` in a string? — Django Anonymous, Aug 15 '12 at 17:50
You cannot access `window.parent` if the parent page is from a different domain. — Felix Kling, Aug 15 '12 at 17:52
@FelixKling Yes it is from a different domain. So how i can resolve it? — Django Anonymous, Aug 15 '12 at 17:53
check for the exception as i did in my answer if its still not working for you — Pranay Rana, Aug 15 '12 at 17:56
I don't think you can. Have a look at http://stackoverflow.com/questions/3420004/access-parent-url-from-iframe. What is your final goal? — Felix Kling, Aug 15 '12 at 17:59
@Felix Kling Actually I am making a facebook app and want to redirect the user to some other website. In facebook app I have my code in a frame, as facebook provides frames for applications — Django Anonymous, Aug 15 '12 at 18:18

score 3 · Accepted Answer · answered Aug 15 '12 at 17:52

Make sure that your script has access to parent. Then modify script as given below

<script type="text/javascript">
window.onload = function(){
    var wloc = window.parent.location.href;
    var abcd = wloc.substring(0,24);
    alert(wloc);
    alert(abcd);
}
</script>

For location of current window try the script below

<script type="text/javascript">
window.onload = function(){
    var wloc = window.location.href;
    var abcd = wloc.substring(0,24);
    alert(wloc);
    alert(abcd);
}
</script>

score 1 · Answer 2 · answered Aug 15 '12 at 17:48

1

add .href after window.parent.location:

<script type="text/javascript">
window.onload = function(){
    var wloc = window.parent.location.href;
    var abcd = wloc.substring(0,24);
    alert(wloc);
    alert(abcd);
}
</script>

answered Aug 15 '12 at 17:48

mgraph

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score 0 · Answer 3 · answered Aug 15 '12 at 17:51

Below line is giving error. That's why it doesn't showing alert.

var abcd = wloc.substring(0,24);

Use this instead

<script type="text/javascript">
  window.onload = function(){
    var wloc = window.parent.location.href;
    var abcd = wloc.substring(0,24);
    alert(wloc);
    alert(abcd);
 }
</script>

javascript not showing alert

3 Answers3