Can't run phpmyadmin under nginxunit

[lhmwzy]

# cat config/blogs.json
{
     "listeners": {
         "*:8300": {
             "application": "blog"
         }
     },
     "applications": {
         "blog": {
             "type": "php",
             "workers": 20,
             "root": "/home/www/phpmyadmin/",
             "index": "index.php"
         }
     }
}
# curl -X PUT -d @config/blogs.json --unix-socket ./control.unit.sock http://10.66.23.99:8300
{
        "success": "Reconfiguration done."
}
But when access http://10.66.23.99:8300
the page is blank.
the app which run is https://www.phpmyadmin.net/.
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