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view demo/increment.ur @ 2116:ebfaab689570

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The 2nd half of proper CSRF protection related to environment variables
author Adam Chlipala <adam@chlipala.net>
date Thu, 12 Feb 2015 15:09:26 -0500
parents e6bc6bbd7a32
children
line wrap: on
line source
sequence seq

fun increment () = nextval seq

fun main () =
    src <- source 0;
    return <xml><body>
      <dyn signal={n <- signal src; return <xml>{[n]}</xml>}/>
      <button value="Update" onclick={fn _ => n <- rpc (increment ()); set src n}/>
    </body></xml>