All I see from your screenshot is some "chat bubble" in Wechat with the link copy-pasted from browser. You can't just share a link with
#hash and expect it to share the image or panorama opened, because it doesn't work like that.
These two pages are the SAME:
/plugins/panorama/
/plugins/panorama/#pano=meteora-monasteries
The only thing the last link does, is instruct X3 to open the "meteora-monasteries" panorama via Javascript. The
#hashtag has no other function and does not represent a unique page. Therefore, any search engines and social robots, will see the same parent page /plugins/panorama/ because that's where the panorama viewer is running from. We cannot create unique pages when we simply add "popups" on top of the existing page ... that would be unproductive for human visitors. Besides, where would it get title and preview image for the panorama?
Sorry, but it doesn't work like this because the panorama engine is Javascript based, and for optimal user-experience, it doesn't "load" new pages when clicking a panorama just for sharing purposes.