I tried the same post and didn't run into the same issue:
http:/
Though I also tried liking your original post @danito and got this:
http:/
The post includes the extraneous metadata "Daniel Nixpublished this 26 Oct 2016 0 stars 0 comments" in the title, rather than just the original title. Perhaps you've got some code misplaced that's causing both issues for you?
I've run into the original problem a few times in the past, but it's typically been the target site having issues with http/https or security settings that don't allow the plugin to scrape the page properly. It's been relatively rare and I haven't run across it in a while.
If I recall, the locations module had a (similar?) issue a while back that didn't fail gracefully when the system didn't return a location properly and it just hung. It was changed to allow it to fail and let the user enter/cut&paste the data manually. Depending on the root cause of the problem, perhaps this could be a solution? Is it even showing you the URL field before you approve the post? Could you enter it manually?
@rikmendes I'm not sure what you mean about Twitter URLs, though If I use it to "like" a tweet, I get something like this: http:/