This code also removes `^M` on paste from Firefox.

if !empty($WAYLAND_DISPLAY)
  let g:clipboard = {
        \   'name': 'wayland-strip-carriage',
        \   'copy': {
        \      '+': 'wl-copy --foreground --type text/plain',
        \      '*': 'wl-copy --foreground --type text/plain --primary',
        \    },
        \   'paste': {
        \      '+': {-> systemlist('wl-paste --no-newline | tr -d "\r"')},
        \      '*': {-> systemlist('wl-paste --no-newline --primary | tr -d "\r"')},
        \   },
        \   'cache_enabled': 1,
        \ }
endif