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8.0

Calling parent JS function from iframe (permission denied)

Asked by Kaprice in Dynamic HTML (DHTML), JavaScript, Hypertext Markup Language (HTML)

Tags: javascript, dhtml, html, iframe

I have a page with an iframe.  The src of the iframe has code that calls a javascript function on the parent  (parent.myfunction();).  It does that onClick.

When clicking, I get a Permission Denied error.

After some experimenting, I noticed that my iframe src begins with http://www.

I get the error if I omitted the "www" in the address bar.  i.e. http://mydomain.com  (that happens when you just type mydomain.com in the address bar).

If I type www.mydomain.com, I don't get the error.

My research uncovered that the permission error is when the iframe holds a page from a different domain -- for security reasons.

But, in my case, it is the SAME domain.  But, one visitor might use the www and another might not.  How do I make both instances work?

BTW, the message from Chrome's Inspect Object is: "Unsafe JavaScript attempt to access frame with URL"

Again problem goes away when the parent was loaded with www.
[+][-]08/13/09 06:08 PM, ID: 25094570Expert Comment

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[+][-]08/13/09 06:10 PM, ID: 25094578Accepted Solution

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About this solution

Zones: Dynamic HTML (DHTML), JavaScript, Hypertext Markup Language (HTML)
Tags: javascript, dhtml, html, iframe
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Solution Provided By: Kaprice
Participating Experts: 1
Solution Grade: A
 
[+][-]08/13/09 06:10 PM, ID: 25094580Expert Comment

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

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