A note: graph.facebook.com's api doesn't seem to work when using Safari or on Chrome and Firefox's private browsing modes

[sashimii]

Posting this here since I was investigating this issue and I want to ensure that other folks also trying to figure out why the GSS Facebook Button doesn't show a number on private browsing and Safari understand what's happening. The issue seems to be with facebook's Open Graph API.

---

Here's how the request looks on the aforementioned browsers where we have this problem, using the following link:

https://graph.facebook.com/?id=http%3A%2F%2Fwww.toronto.com%2Ffood-drink%2Ftorontos-best%2Fbest-fried-chicken%2F&callback=jQuery112409174139990936965_1473864943581&_=1473864943582

Result:

/**/ jQuery112409174139990936965_1473864943581({
   "error": {
      "message": "(#4) Application request limit reached",
      "type": "OAuthException",
      "is_transient": true,
      "code": 4,
      "fbtrace_id": "HFELzsXkv6+"
   }
});

---

Here's how the same request looks on Chrome and Firefox (not private browsing):

/**/ jQuery112409174139990936965_1473864943581({
   "og_object": {
      "id": "863504060416887",
      "description": "Toronto restaurants are cooking up some seriously good fried chicken, with perfectly crispy skin, delicious sides and unique spice blends.",
      "title": "Best Fried Chicken in Toronto - Toronto.com",
      "type": "article",
      "updated_time": "2016-09-12T13:32:03+0000"
   },
   "share": {
      "comment_count": 0,
      "share_count": 52
   },
   "id": "http://www.toronto.com/food-drink/torontos-best/best-fried-chicken/"
});

---

I don't purport to know the answers of what's causing it. Could be something wrong with headers for all I know.

Maybe a solution could be to also make requests with facebook's PHP SDK so that there's a number served from Wordpress that can be used in case of a user being in private browsing mode