Deliver the max. valid date in the return value

This allows the client to find out why no data gets returned.

1 files changed, 1 insertions, 0 deletions

diff --git a/json.php b/json.php
index 3f71ec6..7705332 100644
--- a/json.php
+++ b/json.php
@@ -63,6 +63,7 @@ header("Content-type: application/json;");
 
 $retval = array();
 
+$retval['maxdate'] = valid_date('today');
 $retval['channel'] = $channel;
 $retval['date'] = $date;
 $retval['data'] = array();