Are you sending them back via redirect() or some other way?
On Friday, June 29, 2012 3:45:26 AM UTC-4, Neil wrote: > > > >> It shouldn't happen "randomly". It should only happen when you open the >> same page (or any page with a form that has the same formname) in the same >> browser, and then go back to the original page and try to submit the >> original form. We've talked about allowing multiple versions of the >> _formkey for the same form to avoid this problem, but that hasn't been >> implemented yet. >> > > Thanks - this has been very useful. It is definitely happening for me > without opening a new page/tab in the browser, but is very inconsistent. A > bit more information: my site guides the user from one page to the next, > but occasionally loops back on itself to an earlier page, depending on user > input. This problem seems to occur (inconsistently) when revisiting pages > they've already been to. I suppose there is some sort of conflict with the > _formname. Assigning a unique formname should do the trick. > > Thanks again, > Neil >
