Facebook sharer keeps showing 404 on my jekyll blog - facebook

I used to have the permalink set as follows:
/:categories/:year/:title/
But to shorten the link I decided to set it like that:
/:title/
The strange thing that happens is that although facebook sharer sees the proper link, it does not display it and each click on facebook share button looks like this:
But when I share it to my timeline, it keeps showing 404 but when clicked it directs to the right page.
It looks like a facebook issue, since twitter sharer does not seem to have such problems.
Have you ever encountered such issue and know how to fix it?
Thanks in advance

fetch new scrape information
https://developers.facebook.com/tools/debug/
solves the issue

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Facebook showing wrong tumblr on sharing, 302 redirects to main page

I have a problem. I want to share my blog post on facebook http://videoefekt.cz/?p=548 but every time I do that, it only shows tumblr of my homepage....Facebook debugger is showing Canonical URL is videoefekt.cz, but it shouldnt be. I am also getting "The following required properties are missing: og:image, fb:app_id" warning.... Its a wordpress website, I tried to change permalinks, tried to erase facebook cache and I don know what else to try, can anyone help ?

Facebook like button shows main domain like count on article pages

I ran into a strange problem with the Facebook Like Buttons. After implementing it on the articles pages in SOME cases, but most of them, it shows up the like count for the main page.
Article page example:
http://www.men.hu/a-legnepszerubb-gyogyteak/eletmod/gasztro/225
This article should have 0 to 5 likes, not 200+. The main URL has 200+ likes. After parsing it with Facebook's Linter tool, it works just fine! Shows 0 likes and the Facebook like button starts working on the article page too. It seems like it clears some kind of cache, or re-parses the URL and corrects its data.
Debugging the parsed Facebook like button, the data-href tag seems to be correct, showing up the current page URL, not the main page.
Where can be the problem and how could I solve it? Any ideas are welcome as I feel like I tried already everything...
I had this problem with some pages, it turned out that the pages had been published, then someone disabled them and reactivated them again later. While the pages were disabled, Facebook checked the page (they say they check pages every 24hrs to make sure the Page Title and other details are up to date) and got redirect to the home page, so used the 'like' count for that page. However, Facebook cached the redirect so never picked up again that the page had been re-enabled.
We resolved the problem by manually re-linting the pages using the Facebook debugger, as you have done already.
Your page does seem to have the correct Like count just now (3), so looks like you may have resolved the problem for now.

FACEBOOK like button and meta tag 'og:site_name' not showing correctly

I´ve inserted a FACEBOOK like button succesfully, except that the meta tag 'og:site_name' is not working...:
On my facebook page, it shows the name of the main domain (http://www.domain.com) and not the content of the meta tag 'og:site_name' (FAN CLUB)
I've research everything there is to research without success... Something so simple(?) Am i missing something?
Thanks!
Feeding your URL through the Facebook Debugger should clear Facebook's caching of your URL and refresh any changes you have made. Try passing your URL to the debugger and it should be refreshed to the correct value.
The debugger will also direct you to any other problems you may have with regard to integrating your URL into the Open Graph Protocol...

Facebook like button not working

Facebook like button not working on my site.
It goes from like back to default as if it isn't passing some validation.
http://www.imageizer.com/
Once the problem is detected and solved, I'll edit the question to represent a minimal example that will benefit the SO community. Unfortunately I can't pull out the problem out yet as I'm not sure what it is..
Here is a screencast demonstrating the issue http://see.weareinto.com/8Hbq
I believe this is a problem happening on facebook's end. But, there is a way you can fix it... Just copy the URL of your page and enter it in the Facebook LINTER tool here:
Facebook LINTER -> https://developers.facebook.com/tools/debug
I'm not sure of the exact details of why this works, but from what I've been able to gather, when you run the LINTER tool on your URL it will also update the cache facebook has for your URL. The error with the button working is on the facebook side, so by running this tool and getting facebook to update their cached data for your page, the like button starts working again. I've seen this broken facebook button occur for a few different reasons, one being that a page used to use the old facebook share button. When you add the new like button to a page that used to use a share button, the like button won't work until you run the page through the linter.
Bottom line is doing this will fix your like button. If your facebook button doesn't work on a page, run it through the LINTER tool. Hope this helps!
If you are on Wordpress and you have the "Facebook Comments" plugin enabled, uncheck "Include OpenGraph Meta Information" at the very bottom of the Facebook Comments settings page. This was screwing it up for me.

Facebook Like Button Keeps Resetting

I'm trying to add a facebook "like" button to my page, and it is appearing just fine. My problem is that once it is clicked by a user, it says "Like NUMBER" then resets as if the request was canceled or something.
The weird thing is that if I try to like a page using my facebook account it works, but I tried letting a friend like some content and this behavior appeared.
I created a facebook app, specified the site url with a trailing slash, and site domain. I used the app ID with FB.init, and with the open graph tags. I can't figure what I'm doing wrong here. Any help would be appreciated.
Sample page can be found at: http://wiseolive.com/en/doctors/3881-khalid-jamal-salaymeh
First, for the count to work correctly, Facebook needs to have access to the page (in other words a public page). Check your URL in the linter tool (https://developers.facebook.com/tools/debug) to ensure it can been seen by Facebook.
Secondly, ensure your og: tags are correctly setup. Once again, you can use the linter tool to do that.
Facebook like buttons will show this behavior until they have been scraped by Facebook. That scraping (facebook like docs) will occur every 24 hours, when an admin clicks the like button or the url is put in the url debugger/linter. From what I can tell doing that will solve the problem for that specific link, but not any others you may have on your site.
I don't know of a generic solution for dynamically generated pages unfortunately.