`I have found this code on stackoverflow (here). It works. This code let me share from web to facebook messenger directly. But I found an error. I can share my website while accessing brower and facebook post. But if I open my website from messenger and access my site, I can't share it anymore. Messenger Pop up and instantly goes down.
So, it only works when I share my site while accessing browser and facebook post. When I access my site from messenger and try to share, it fail....
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<a href="fb-messenger://share/?link=http://url-you-want-to-share.com&app_id=your-app-id-here">Share</a>Thanks for your time.