Perhaps we should also revert the js-mode comment-multi-line setting,
not sure.

--- i/lisp/progmodes/js.el
+++ w/lisp/progmodes/js.el
@@ -3856,7 +3856,6 @@ js-mode
         comment-start-skip "\\(//+\\|/\\*+\\)\\s *")
   (setq-local comment-line-break-function #'c-indent-new-comment-line)
   (setq-local c-block-comment-start-regexp "/\\*")
-  (setq-local comment-multi-line t)
 
   (setq-local electric-indent-chars
 	      (append "{}():;," electric-indent-chars)) ;FIXME: js2-mode adds "[]*".