Access a global variable with Chrome

Question

I've got a simple html code with an iframe on it and I want to access a global variable outside the iframe on the parent.

Anyone knows why chrome doesn't want to make me happy? :)

The code of the iframe works fine in ff,ie,... but not chrome.

Html Code :

<html> <head> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7/jquery.min.js"></script> <script> var one = "two"; </script> ..... <body> <iframe name="process" id="process" src="" frameborder=1></iframe> </body> </html>

Iframe Code :

<html> <head> <script> alert("Inside step 1 : "+parent.one); </script> </head> <body> STEP 1 </body> </html>

@ean5533 is not the same thing, as i'm accesing a global scope variable, not a content from different frame with their id's. Also this is an iframe — Tony
– Tony, Commented Dec 28, 2011 at 16:29

Matt Bradley · Accepted Answer · 2011-12-28 16:14:18Z

1

Unfortunately, you can't do that in JavaScript. Each iframe is contained in its own document. This document object contains the global scope of that iframe. You can't access anything outside of the global scope, so the iframe can only use variables created inside the iframe.

answered Dec 28, 2011 at 16:14

Matt Bradley

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2 Comments

josh.trow Over a year ago

Well, if I put the provided HTML into a test page, I can call alert(parent.one) on the iframe correctly...

Tony Over a year ago

@Matt Bradley Nope, as i said in ff and ie i can access variables in the global scope inside the iframe. You can access variables outside the iframe if the principal and the iframe are in the same host.... no window.message needed as they're in the same domain

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