But if so, how do they have access to the URL of the page I was when I copied the content? Indeed, after checking with other browsers, I concluded it's Chrome's fault, and not Medium's. This would be the worst case scenario, because I'd have very little control over it. I even thought Medium could be listening to 'paste' events. Most of the formatting is preserved fine, but for some reason I don't understand all relative links are converted to absolute ones. I'm copying rich text from a div with contenteditable='true' and pasting it to a Medium draft.