View Full Version : Difference between Callback and Response?

06-28-2005, 11:33 AM

I have recently been looking at a number of services that use HTTP gateways.

These services refer to "Server Callback" and "Server Response", as if these were two different things ...

As far as I am aware, the client (i.e. the browser) sends a request to the server (in this case the gateway), which then reponds by processing the post and get vars (where necessary) and sending back a local page (i.e. local to the gateway server), or performs a server-redirect to load a page on my webserver (and passes the post and get vars to it). As far as I am concerned, both of these behaviours are best described as "Server Response". What, then, is "Server Callback"? I have found plenty of google references to the two (obviously different) mechanisms, but I have found no explanation of what they actually are!

If anyone knows, please could you let me know.


07-02-2005, 03:15 PM
Callback doesn't make the page loaded change.

07-11-2005, 12:58 PM
Thanks for that info! I thought it had to be something really simple!