When I use Graph API to access user's apprequests, /me/apprequests sometimes returns null "from" property, like the following.
{
"data" : [
{
"id" : "xxxxxx_xxxxx",
"to" : {
"name":"xxxxx xxxxx",
"id":"xxxxxx",
},
"from" : null
}
]
}
This occurs for some users data, but not always. How come this happens? All apprequests are created in same way, using Fb.ui({method: 'apprequests',...});