Back button on 6.5.2 server

I have seen the suggestion to use the @SetHTTPHeader(“Expires”;“0”)command in a computed-for-display field to fix the Back button issue.

That seems to work just fine. My problem is that I need to execute this code on an R6 server, but maintain it through an R5 design client. Since @SetHTTPHeader is not a known command to R5, it doesn’t compile.

I’ve tried a few ways to get the code into a CFD field at the time the form loads into the browser session. No luck so far. Does anyone have any thoughts as to how this might be done? This will continue to be an issue until all of our Notes clients are upgraded.