At using share function via LinkedIn API, one and the same picture is transfered for each page of the website http://hrm.mysitedemo.co.uk
The picture is cached on the server.
The address of this picture on server is: link
Address that leads to share dialog window is : link
Could you please tell how to to clear the cache manually?
Content shared via LinkedIn is cached by LinkedIn's servers for a period of ~7 days. There is presently no way to manually clear the cache other than waiting for it to expire.
One possible short-term work-around is to modify your URL with a "garbage" parameter at the end of it, e.g. http://example.com/mypage.html?donothing=1
Provided your site does not change the content displayed based on the parameter you append, LinkedIn will see that as a different URL and you won't get the old cached version.
LinkedIn provides Post Inspector which obviously clears the preview cache.
Just debug your cached url in https://www.linkedin.com/post-inspector/inspect/.
It worked for me.
Try passing the &summary="Your short description" in the url, as BBC does:
This way it wont look to load it from your page's OG tags and it wont get cached. Worked for me
I've just found a way to force linkedin to fetch a fresh version of the page. Just create a redirect to your destination page and share the redirect page.
For example:
If your page that you want to share is: http://hrm.mysitedemo.co.uk
Create a redirect for a page: http://hrm.mysitedemo.co.uk/share-li to go to http://hrm.mysitedemo.co.uk
And then share the http://hrm.mysitedemo.co.uk/share-li on linked in. This way linkedin will think it's a new page and it'll get a fresh page version.
It's easy to do if you're using wordpress, just install a redirection plugin like this one for example: https://wordpress.org/plugins/redirection/
To fix this you simply need to add a query string to the end of the URL. For example -
Old URL - https://gradbee.com/project/gradbee-campus-ambassadors-2017/
New URL - https://gradbee.com/project/gradbee-campus-ambassadors-2017/?1
In my case, the link didn't refetch because I had a RewriteRule (to force www) with [L,R=301] in .htaccess. Changing it to simply [L,R] made the preview change.
Go to https://www.linkedin.com/post-inspector/ Insert URL of your page and click "Inspect". That's all)
There is a way to clear the cache. Just share the link again making sure you post to at least one group and to your update. It will update the cache :)
来源：https://stackoverflow.com/questions/27190284/how-to-clear-the-cache-of-linkedin-sharer-manually