Expert help needed: external document through a fame

Hi,
I'm on a verge of desperation... I've spent lots of time coding to find out I was in "Access violation"

I've made a really nice calculator for a web game.
The web game has a sort of a marketplace where you could buy things, but it's built in a very uncomfortable way.

On my site, I've added a calculator for this marketplace which would make it a lot more comfortable.
The game is opened in a frame, and at the end of the calculation the user would be able to simply move all the results into the appropriate fields in the game frame.
I used:
parent.FrameName.forms.InputName.value = document.MyForm.InputName.value

<i is a calculated value, since the game has no names to the forms..>

Since while developing I used a page with copied source, All worked well, but when I ran the code online, I found out that I get "Access Denied" error when attempting to write into the external document

Since the game checks for referrer, I have no idea what to do...

Please help me around this thing

 

Are you trying to write to a file on another server?

 

No, I'm trying to make JS fill up a form that is on a page on a different server.
The page is loaded in a frame on my site...
The problem is I found that there's this thing called "Same-Origin Policy" JS sticks to, and I need a workaround for it...
If you know a way, I'd be most grateful!

 

forms.InputName check the variable name (it is case sensitive)

 

Look one reply above..
I found the name to my problem: it's called "Same-Origin Policy".
It means that no access will be granted to a document which is stored on a server that is not the server the JS code is located on, And/Or a document that has been loaded using a different protocol then the one the JS code is located on.

An example:
My site is: www.anExampleHost.com/dir/page.htm
On page.htm there are 2 frames:
frame1: code.htm
frame2: http://www.aDifferentServer.com/path/page.html

code.htm can't access page.html since it's summoned from a different host.

Example2:
My site is: http://www.anExampleHost.com/dir/page.htm
On page.htm there are 2 frames:
frame1: code.htm
frame2: https://anExampleHost.com/dir/target.html

code.htm can't access target.html since it's loaded via different protocol:
http != https (secure http)

My problem is of the first example.

My question is: "Is there a way around it? Can I somehow bypass the Same-Origin Policy" ?

 

Using only javascript: no you can't, because it's cross site scripting.

The workaround I think could be to extend your javascript with serverside coding.

Something like sending a string+session_id+some unique key by firing off a regular post/get to the other site and on the receiving end the data sent would have to be processed and displayed making a call back to your end to trigger a refresh of the displayed data.

I.E it would be necessary to establish this "communication pipe" on both ends.

Just my $0.02