问题
I Follow the below open graph meta tags to show thumbnail on sharing. It works perfectly in facebook but not in whatsapp
<meta property="og:site_name" content="Hahaa haa">
<meta property="og:title" content="Haaha haa - Music Player" />
<meta property="og:url" content="http://13.126.57.106/aiyoapp/public/" />
<meta property="og:description" content="Haaha haa Music Player is used to share">
<meta property="og:image" itemprop="image" content="http://13.126.57.106/aiyoapp/public/images/ha_thumb.png">
<meta property="og:type" content="website" />
回答1:
I have had the same problem, everything worked fine in any opengraph testing tool and in the social sites themself's: facebook, twitter, ok, vk but in whatsapp & telegram not.
So after a lot of research, the problem was in our virtual site firewall that protects from site crawling by many logics, a couple of them is IP and User-Agent. The whatsapp & telegram are pinging sites to fetch og data are not throw their servers like social sites, but through your mobile operator's dynamic IP, but the user-agent is of the messenger itself, and it was in our automatically generated blacklist.
Check if you don't ban access to your site by theirs user-agents string that contains: WhatsApp/2.17.395 A or TelegramBot (like TwitterBot)
Wish it helped.
来源：https://stackoverflow.com/questions/47236739/open-graph-protocol-not-working-in-whatsapp