bug#68336: 29.1.90; eww: error when eww-retrieve-command is set to 'sync

[Eli Zaretskii]

> From: Juri Linkov <juri@linkov.net>
> Cc: Eli Zaretskii <eliz@gnu.org>,  68336@debbugs.gnu.org
> Date: Tue, 16 Jan 2024 18:32:02 +0200
> 
> > I see the error in my builds of 29 and 30, but not in 28.2.
> >
> > Example in Emacs 29:
> >
> >  (setq eww-retrieve-command 'sync)
> >  (eww "http://example.com";)
> >
> > Debugger entered--Lisp error: (wrong-type-argument stringp nil)
> > So I think the bug is the last line here:
> >
> >          (apply #'eww-render nil url cbargs))))
> >
> > Where cbargs evidentially contains the URL already, so it
> > should presumably be:
> >
> >  (apply #'eww-render nil cbargs)
> 
> Thanks, I confirm this is the right fix.
> 
> Eli, is it ok to fix eww.el on the emacs-29 branch?

Yes, thanks.