Facebook share throwing connection error when sharing - facebook

Every article on the following website fails when attempting to share the page via the share link in our social media widget.
for example:
the following page, http://news.gc.ca/web/article-en.do?mthd=index&crtr.page=1&nid=957389 when shared via the following link:
Returns an Error: Connection error in the share preview window. Response headers for this request are:
Cache-Control: private, no-cache, no-store, must-revalidate
Content-Encoding: gzip
Content-Type: text/html
Date: Wed, 01 Apr 2015 14:22:20 GMT
Expires: Sat, 01 Jan 2000 00:00:00 GMT
Pragma: no-cache
Strict-Transport-Security: max-age=15552000; preload
Vary: Accept-Encoding
X-Content-Type-Options: nosniff
X-FB-Debug: iYvCJSRJJqVdVXyIubD1kVq6teZBILIBRrCACZW9hI/Ms+B2qsquq52KyU5820UTfLmuXTis3LbRoL2bMlCVBw==
X-Frame-Options: DENY
X-XSS-Protection: 0
X-Firefox-Spdy: 3.1
200 OK
running the above URL through the OpenGraph object debugger returns:
Error parsing input URL, no data was cached, or no data was scraped.
and the scraper sees the following for the URL:
Document returned no data
We need to determine the cause of this since none of our content can be shared from our site at the moment.
Any ideas, tips greatly appreciated!

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We recently started using Azure CDN however some users reported an issue and we got a screenshot from one of them:
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We were not able to get any more information on the issue. Any idea what could cause this and how to fix it?
Our origin server returns correctly the file with the following response headers:
Accept-Ranges: bytes
Access-Control-Allow-Origin: https://www.google.com
Cache-Control: max-age=31536000
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Content-Length: 1956119
Content-Type: text/css
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ETag: "011889dd7ffd61:0"
Expect-CT: max-age=604800, enforce,
Feature-Policy: autoplay 'none'; camera 'none'
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strict-Transport-Security: max-age=31536000; includeSubDomains; preload
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X-XSS-Protection: 1; mode=block
I got a similar problem. I was able to fix this by enabling cache i Dev Tools.
Enable cahce in Dev Tools

Fetch Google sees 301 redirect

Background info: Some of my website innerpages had malware on it last week. The whole site has been reset, updated en cleared from malware a couple days ago. The website is SE optimized, but not spammed at all.
Q: Some innerpages of the website have suddenly dropped from the Google results.
Searching site: http://www.domain.com/innerpage doesn't even give a result.
Searching cache: http://www.domain.com/innerpage has no results since today
Webmaster page error: The page seems to redirect to itself. This may result in an infinite redirect loop. Please check the Help Center article about redirects.
HTTP/1.1 301 Moved Permanently
Date: Mon, 28 Oct 2013 20:15:18 GMT
Server: Apache
X-Powered-By: PHP/5.3.21
Set-Cookie: PHPSESSID=170fc3f0740f2eb26ed661493992843a; path=/
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
X-Pingback: http://www.domain.com/xmlrpc.php
Location: http://www.domain.com/innerpage/
Vary: Accept-Encoding,User-Agent
Content-Encoding: gzip
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Transfer-Encoding: chunked
Content-Type: text/html; charset=UTF-8
The .htaccess file looks fine too. Do you guys have any idea what going on here?
The page is w3c valid and even online googlebot simulators show state 200 OK.

oauth2.0 invalid request when trying to use refresh token

Used google oauth2 playground: https://developers.google.com/oauthplayground/
Followed: https://developers.google.com/accounts/docs/OAuth2WebServer#offline
Anyone why I am getting invalid request?
POST /o/oauth2/token HTTP/1.1
Host: accounts.google.com
Content-length: 209
Content-type: application/x-www-form-urlencoded
Authorization: OAuth ya29.XXXXXXXX
client_id=XXXXXXXXX&
client_secret=XXXXXXXXX&
refresh_token=1/0ffkj5lggn8XXXXXXXXX&
grant_type=refresh_token
HTTP/1.1 400 Bad Request
Content-length: 33
X-xss-protection: 1; mode=block
X-content-type-options: nosniff
X-google-cache-control: remote-fetch
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Server: GSE
Reason: Bad Request
Via: HTTP/1.1 GWA
Pragma: no-cache
Cache-control: no-cache, no-store, max-age=0, must-revalidate
Date: Thu, 11 Oct 2012 21:29:55 GMT
X-frame-options: SAMEORIGIN
Content-type: application/json
Expires: Fri, 01 Jan 1990 00:00:00 GMT
{
"error" : "invalid_request"
}
If you're getting 400 is because you are adding an invalid parameter or missing one.
edit:
i believe from the given data there is an extra header Authorization. This is used in oauth2 only when access_token is passed in header, to make authenticated calls
Authorization : Bearer XXXXXXXXXXXXXXXX
while refreshing access_token there is no need to provide the same in header.
https://developers.google.com/accounts/docs/OAuth2InstalledApp#refresh

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I am posting a link to the feed of a page with Graph API. Last time I checked, my code was working a couple month ago. But today I find out that the same code stops working and returns an error.
Basically what I do is:
$ curl -i -F 'access_token=my_application_token' -F 'link=http://www.foodnetwork.com/recipes/tyler-florence/parsnip-puree-recipe2/index.html' -F 'name=Parsnip Puree' -F 'picture=http://img.foodnetwork.com/FOOD/2009/02/25/TU0603-1_Parsnip-Puree_s4x3_tz.jpg' -F 'id=my_page_url' https://graph.facebook.com/feed
It now returns the following result:
HTTP/1.1 500 Internal Server Error
Access-Control-Allow-Origin: *
Cache-Control: no-store
Content-Type: text/javascript; charset=UTF-8
Expires: Sat, 01 Jan 2000 00:00:00 GMT
Pragma: no-cache
WWW-Authenticate: OAuth "Facebook Platform" "unknown_error" "An unknown error has occurred."
X-FB-Rev: 600290
X-FB-Debug: mTeWwusHg5daIP2IMHlebi8fnLT9PO0CNJQeshMC+Hg=
Date: Mon, 30 Jul 2012 19:07:01 GMT
Connection: keep-alive
Content-Length: 87
{"error":{"message":"An unknown error has occurred.","type":"OAuthException","code":1}}
If I try the same post without the parameter of "link", then it works:
$ curl -i -F 'access_token=my_application_token' -F 'name=Parsnip Puree' -F 'picture=http://img.foodnetwork.com/FOOD/2009/02/25/TU0603-1_Parsnip-Puree_s4x3_tz.jpg' -F 'id=my_page_url' https://graph.facebook.com/feed
This returns the following, and I can see the post on my Facebook wall (without the desired link, of course):
HTTP/1.1 200 OK
Access-Control-Allow-Origin: *
Cache-Control: private, no-cache, no-store, must-revalidate
Content-Type: text/javascript; charset=UTF-8
Expires: Sat, 01 Jan 2000 00:00:00 GMT
Pragma: no-cache
X-FB-Rev: 600290
X-FB-Debug: iVVyk65AbEbnXNm0RyurLp/ZQA/oNXJ47w1UkLXXTfw=
Date: Mon, 30 Jul 2012 19:07:19 GMT
Connection: keep-alive
Content-Length: 40
{"id":"155190691260287_268086653304xxx"}
What puzzles me is that the same code with "link" parameter had been working. And the Facebook documentation does not say anything has changed about the "link" parameter for posting to feed.
Any idea what went wrong?
Thanks.
I'm having a similar issue lately, posting to page feeds with links seems to fail by the reply, however the post is still created. I have the proper permissions and the app is public. There's currently a bug-report opened at https://developers.facebook.com/bugs/726825557390253 that might shed some light on the problem should a FB dev respond!

Facebook RSS feeds ignoring HTTP ACCEPT header elements?

FB doesn't seem to respect ACCEPT headers sent to /feeds/page.php. See below example:
GET /feeds/page.php?id=10036618151&format=rss20 HTTP/1.1
Connection: Keep-Alive
**Accept: text/xml,application/xml**
Accept-Language: en-us
User-Agent: Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
Host: www.facebook.com
HTTP/1.1 200 OK
Cache-Control: private, no-cache, no-store, must-revalidate
**Content-type: application/rss+xml**
Expires: Sat, 01 Jan 2000 00:00:00 GMT
Last-Modified: Wed, 08 Feb 2012 10:05:49 -0800
P3P: CP="Facebook does not have a P3P policy. Learn why here: http://fb.me/p3p"
Pragma: no-cache
X-Content-Type-Options: nosniff
X-Frame-Options: DENY
Set-Cookie: datr=-vIzT4cxw52hjjqTfrpQkNYX; expires=Sat, 08-Feb-2014 16:23:22 GMT;path=/; domain=.facebook.com; httponly
X-FB-Debug: qx/SiyRZDiVPm4wfiKVj37HImPoKM+DVAsO4oKSbSr0=
X-Cnection: close
Date: Thu, 09 Feb 2012 16:23:22 GMT
Content-Length: 41236
I cannot seem to find a way to post a new bug report on http://developers.facebook.com/bugs, as I don't have the "Create" (nor the "Subscribe") buttons as described here http://developers.facebook.com/blog/post/559/
I have read that there are a fair few FB developers involved with this site, and was hoping that someone could shed some light on what I might be doing wrong / how to request FB changes the code to respect my request, or 406 me.
You are going to want to verify yourself as a developer in order to create a bug.
Check out this link for verification via -
mobile number
credit card
Once you have verified your account, head back to the bug system.