I want to set the “Expires” of the httpheader to 0 so that pages can expires when user click “go back” on the IE.
I place a field Computed on the form with @dethttpheader(“Expires”,0) in it. However it takes no effect. users can still go back without expiring warning.
I have tested it seveal times and read the related topics on the forum. Still can’t find the answer