Using Javascript to pass values between browsers Options

[markricard]

Hello,

We have two different web applications, AppA and AppB. Each web application is hosted on different servers.

AppA does a popup to launch AppB in a browser. The user selects items in AppB and puts them in a cart and then we want to transfer those values back to AppA without AppA having to refresh the screen.

We thought we could do this by having AppB do a form post that launches yet another popup whose sole job was to do a javascript parent->parent->field update and pass in the selected textual values.

This works in IE, but it does not work in Firefox or other browsers because we are getting a security exception.

Does anyone know of a way around this or another approach to doing this that will allow us to satisfy this requirement?

Thanks in advance,
Mark

[Brian Chandler]

More concrete details would help. What do you mean by AppA "not having to refresh the screen"? I fancy you are trying to think of this as different "application" running in different windows - this is not really how the web works.

Suppose AppA is a shop, and AppB is a (separate) cart mechanism, then if the user puts stuff in a cart in AppB, then clicks - what? "Go to checkout" perhaps? Then the checkout page should normally appear somewhere, to give feedback to the user.

If you really want a separate window to pass information silently to the original server, simply have it post to some page, with the parameters (including a session id, or you won't know whose parameters they are). The page should display whatever is necessary.

I think your proposed javascript window-to-window cross-scripting scheme will fall foul of security problems in any well-designed system, which is probably why it works ok in M$-Exploder.