I’m having a really similar issue… but just on LinkedIn. Sharing to Facebook, Google+, and Twitter all work just fine (thumb, descrip, url, and title all work). But LinkedIn gives me the same behavior you describe.
Did you have any luck isolating a specific setting in BWPS that resolved the issue?
No. I have done this with 3 sites … turn off all settings, turn them on one-by-one, checking LinkedIn each and every time …the ONLY way to get the formatting in the LinkedIn system is to remove WP Better Security.
/facepalm
Boy howdee… you try prevent someone else shooting you in the foot and end up shooting yourself in the foot.
Here is the solution for LinkedIn Open Graph and Better WP Security: http://ww.wp.xz.cn/support/topic/having-url-preview-problems-in-linkedin-bot-blacklist-is-blocking-them/
From my point of view, completely disabling the banlist may not be very secure. So I’ve done some research and found out that the following lines are blocking LinkedIn bot.
RewriteCond %{HTTP_USER_AGENT} libwww [NC,OR]
RewriteCond %{HTTP_USER_AGENT} libwww-perl [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Link [NC,OR]
RewriteCond %{HTTP_USER_AGENT} LinksManager.com_bot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} linkwalker [NC,OR]
I propose to turn on the “Enable Default Banned List” option and then manually remove the following code from .htaccess file. (The “Remove write permissions from .htaccess and wp-config.php” should be disabled before editing). This solution works for me and it would be great if someone could check it too.
I read a lot of information and realized that the problem with the incorrect link preview in LinkedIn is very popular. Many people (including me) were not even aware that it may be caused by security measures in WordPress CMS. Therefore, I would like to ask the Better WP Security author to make some changes in the next releases or investigate this problem and include the solution to the FAQ.
This sounds really promising! Thanks for sharing your research. You win the internet!
John3121’s solution worked for us! Thank you so much!
Same trouble. Did anyone figure out which lines are blocking facebook scraper?
Thanks John3121, worked like a charm. Might leave a small hole but in the grand scheme of things Linked In share is more important to my client!