Hi,
When you do 
`emacsclient "org-protocol://capture?
template=X&url=URL&title=TITLE&body=BODY"`
I don't understand at all how you make use of `url` `title` and `body` in `org-
capture-template`.
I understand there is some sort of "encoding" that doesn't make use of the keywords 
`url` `title` or `body`, but it's dense.
There are no indications of how to do that here:
https://orgmode.org/manual/The-capture-protocol.html[1]
I haven't found any example that I've been able to reproduce in the whole web.
I've spent hours on the documentation and the source code of
https://github.com/emacs-mirror/emacs/blob/master/lisp/org/org-protocol.el[2]
And I have absolutely no idea of how to use `url` `title` and `body` in `org-capture-
template`.
Chris

--------
[1] https://orgmode.org/manual/The-capture-protocol.html
[2] https://github.com/emacs-mirror/emacs/blob/master/lisp/org/org-protocol.el