Facebook This Message Contains Blocked Content
You get the following error when Facebook like button or share box which clicked, or while commenting in a fb Comment Box ?
Message Failed: This message contains content that has been blocked by our security systems.
Warning : This Message Contains Blocked Content. Some content in this message has been reported as abusive by Facebook users.
If you are a developer and using facebook sdk plugin for your website or app, check the following steps to troubleshoot.
1. If your working on localhost then check it on your domain if it works there.
2. Check https://developers.facebook.com/tools/debug to see if your domain has been blocked.
3. If you see that your domain has been blocked and you think it is a mistake, then a appeal request to https://www.facebook.com/help/contact.php?show_form=block_appeal fb span team.
For developers working/testing site offline it may be so that you have the Facebook like button url say example.com and you are testing it on localhost causing this error!
Note : This is a step Facebook have taken in order to prevent sites that span.