: Facebook share preview not working when behind reverse proxy I host a website on Azure (Web App), but in front of it there's a reverse proxy server (Win Server 2012R2, IIS 8, ARR 3) to route

@Kimberly868

Posted in: #Facebook #Iis #ReverseProxy

I host a website on Azure (Web App), but in front of it there's a reverse proxy server (Win Server 2012R2, IIS 8, ARR 3) to route /blog requests to another server.
If I try to share an url (site.com) there's no preview. But if I share original url (site.azurewebsites.net), preview works fine!
Reverse proxy configuration is default one, latest ARR addon with one rule, routes to server farm with one server. I don't block anything, just rewrite all request to site.azurewebsites.net. IIS logs looks ok, facebook bot receives response status 200.

Also, in facebook debug tool (https://developers.facebook.com/tools/debug/og/object/) all tags and HTML are read correctly, but there's no preview on the bottom.

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