iFrame and parent interaction question

[gamble]

I have an iFrame in a page, and i need to call a function that the main page has. I know about the parent.functionName(), but that isnt working for me. Keeps throwing out this error: Uncaught SecurityError: Blocked a frame with origin "null" from accessing a frame with origin "null". Protocols, domains, and ports must match.

Anyone know how to fix this, or get around it in some way?

I am doing this on my desktop with regular js and HTML files, not on a server or anything.

[sniko]

Look into Same origin policy.

_{Note: As the policy name suggests, this will only work with iFrames with the same origin (same domain; ie: sub.domain.com and domain.com can access each others content. It won't work with domain.com and other.com)}

This StackOverflow thread will be of use to you :)

Edited June 3, 2015 by sniko