Mercurial > urweb
view tests/dynSpan.ur @ 1552:c3b5cf5c2f98
Gentle handling of back-button returns to pages with stale message-passing credentials
author | Adam Chlipala <adam@chlipala.net> |
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date | Sun, 28 Aug 2011 17:16:54 -0400 |
parents | cc58941da3e2 |
children |
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val x = 1 fun main () : transaction page = s <- source "!"; return <xml><body> <dyn signal={x <- signal s; return <xml><span>{[x]}</span></xml>}/> <button onclick={x <- get s; set s (x ^ "!")}/> </body></xml>