Of course you have the next and forward arrow here, but in 99% of the cases this pop up shows an image on the first position we just do not want there !!
Two questions took me ages to figure out.
1) how can i overrule the image
2) how does facebook choose the particular order of the images, if there are more then one
The answer:
Let us start with question 2:
After ages i found a comment made by one of the facebook devs:
For shares, we just pull all the <img> tags, and sort by size, with the biggest one being first.
By size ? I have a page with very small images, so the bigest image here is my content add... great :D
Now the first one, simply put a meta og:image tag in your <head> section:
<meta property="og:image" content="http://www.yourpage.cc/images/1/icon.jpg">
This will overrule every other picture.Easy if yaa know, hum ?
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