I have jjust tried opennab 0.08, when going to the demo_api page I ge the following error about 10 times....
Notice: Undefined index: demo in /home/www/nab/docs/vl/api_demo/index.php on line 56
However, by clicking on one of the hyperlinks following the error, the correct api_demo page appears.
I have not made any changes to the config, it's 'straight out the box'
Actually, it's only a warning message which causes no error.
I think the following line 56 solves the issue :
if( @$_REQUEST['demo'] == $demo->Name() )
It will be included in version 0.09