how to get the topmost page's url

[rohitchawla]

i have a page a.html in which i create and iframe with src=b.html and b.html contains another iframe with c.html and c.html contains another iframe with d.html which calls a javascript x.js which should retrieve the url of a.html

all the pages r from diffrent domains

it works fine when i have the js called from c.html but as soon as i add 1 or more pages in iframe i get a permission denied error

im using top.location.href

[acoder]

If the pages are from different domains, you will get a permission denied error. Make sure they are from the same domain if you want to use Javascript to access the topmost page.

[rohitchawla]

well all the pages r in different domains
but it works fine in two cases

when page a has an iframe with src as page b and page b calls the script
then i get the url of topmost page by document.referrer
and
when page a has an iframe with src as page b and page b has an iframe with src as page c abd page c calls the script
then i get the url of topmost page by top.location or window.top

and all pages r from diffrent domains

[rohitchawla]

but when we have more than 3 domains it fails and we get a permission denied error

[rohitchawla]

well sorry for my misjudgment
the page a and page c are from same domain
so it is giving the top.location value correctly
i didnt see that and now when i have page a,b and c all from diffrent domains it gives permission denied error and the only answer i get is by document.referrer that is only between 2 domains
is there a way where i can get the url of topmost page if we have more than 2 domains

[rohitchawla]

there is webpage that has another page in it as iframe and that page has an iframe in which my page is loaded
i need to get the url of topmost page from my script
i tried using document.referrer to get the url but it only gives the url of the page that has my page loaded as iframe but does not give me the url of the topmost page
since it is cross domain i cant use top.location
i read some examples of xmlhttprequest but dont know how to implement it
i need the url of the topmost page in cross domain scenario
can u help me

[rohitchawla]

i think i have made another copy of my prev thread
can a moderator kill this thread
thnx

[acoder]

i think i have made another copy of my prev thread
can a moderator kill this thread
thnx

I've merged the threads for you.

[rohitchawla]

i saw some examples of xmlhttprequest but cant understand how to implement them
any suggestion on how to get the url

[acoder]

I doubt whether this can be done if it's from a different domain. If from the same domain, but different sub-domain, you could try:

document.domain = ...;