Comment by geocar

One thing I really don't like about it is the implication that the url and the share-button could refer to different things. I feel like browser vendors probably care about knowing whether users use the share button or copy/paste the URL, but hypothetically they know already and I don't feel like most (any?) websites need that information -- it might correlate to a sophistication-level of the user and be used for targeting by scammers, and that could be bad.

For me, I use history.replaceState to change the url after I've got my campaign tracking to the share link, this way the browser's built-in share button does all the work for me. I can detect trivial-reload by checking the cookie I dropped when the page came in, so I don't mis-attribute shares. It is a shame I cannot do this so easily without JavaScript, but I'm sure I can actually buy non-JavaScript users from Google (and other ad platforms) so I'm not sure it's worth worrying about.