Copy and paste image in Safari

I have issues copying an image from website into clipboard and then pasting it on another website in Safari (e.g. Messenger or Facebook). When I click on an image with two-click and select Copy image option and then paste it into another place, I'm getting the image URL instead of the image itself.

I found THIS thread, but it does not resolve my issue, since I still face it although having the latest OS (Mojave 10.14.1) installed, as well as the latest Safari (12.0.1).

I would greatly appreciate any help, cause I don't want to switch to another browser.

It's likely that the app or site you're pasting into doesn't support image paste, and so is defaulting to pasting the link.

You can test by copying and then pasting the image into something like Microsoft Word or Pages, where the actual image should appear.