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<?php
// ************************************************************************
// The two-second sleep simulates network delays, hopefully causing a
// loading indicator message to appear on the client side.
// ************************************************************************
sleep(2);
$dst = ( isset( $_GET[ "to" ] )
? $_GET[ "to" ]
: ( isset( $_POST[ "to" ] )
? $_POST[ "to" ]
: false ) );
if ( $dst ) {
// **********************************************************************
// The crucial line: Issue a custom header with the location to which the
// redirect should happen. For simplicity, we simply redirect to whatever
// location was specified in the request's "to" parameter, but real-world
// scripts can compute the destination based on server-side state.
//
// NB: This is not a HTTP redirect. As far as HTTP is concerned, this is
// a normal request/response cycle with a status code of 200.
// **********************************************************************
header( "X-Redirect: " . $dst );
}
?>
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