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I have a forum, which I intended to be simple, but after user requests is ending up quite complex much like a regular forum. .
So, with heavy usage I've came across this problem. Users are refreshing threads that they are watching to see if there's any additional posts. The problem? Everytime they refresh, they click "ok" and it sends their post again to the forum.
Is there a way to not resend information upon refresh?
send them to an intermediate page that redirects them after a few seconds (or via a link) back to the topic. I can also suggest doing a search on the submitted text against their previous posts (within the last day or some short time frame) to see if it's a duplicated post.. (this will help curb double-posting and cross-posting)