bug#36193: 26.2; 'set-window-scroll-bars' setting doesn't take effect in emacsclient session

[Eli Zaretskii]

> From: Andrea Greselin <greselin.andrea@gmail.com>
> Date: Thu, 13 Jun 2019 16:57:36 +0200
> 
> I use
>   (set-window-scroll-bars (minibuffer-window) 0 nil)
> to disable the minibuffer scroll bar. This works if Emacs is launched with
>   $ emacs
> but it doesn't in emacsclient sessions, though it takes effect if evaluated 
> in the running session (e.g. with
> 'eval-expression'). I tried delaying the evaluation with  
> 'window-setup-hook', to no avail.
> 
> $ cat ~/.emacs.d/init.el 
> (set-window-scroll-bars (minibuffer-window) 0 nil)

Are you starting Emacs as daemon?  If so, disable the scroll bars in
after-make-frame-functions instead of directly in your init file.