Re: mailto link issue in 9.5.5 and 9.6.6

[Scott Randby]

On 6/5/23 15:48, Ihor Radchenko wrote:
> Scott Randby <srandby@gmail.com> writes:
>
> > When I execute (browse-url "mailto:srandby@gmail.com";) in the *scratch* buffer, 
> > I get the following:
> >
> > Debugger entered--Lisp error: (void-function nil)
> >     nil("mailto:srandby@gmail.com"; (nil))
> >     browse-url--mailto("mailto:srandby@gmail.com"; nil)
> >     apply(browse-url--mailto "mailto:srandby@gmail.com"; nil)
> >     browse-url("mailto:srandby@gmail.com";)
>
> Then, it looks like mis-configured `browse-url'.
> Check your configuration.

Here are some steps I tried following your advice.

(1) I eliminated all customizations that involved `browse-url' from my 
configuration and restarted Emacs (Emacs 28.2, Org 9.6.6).

(2) I executed (browse-url "mailto:srandby@gmail.com";) and the buffer to edit 
an email appeared.

(3) I executed (browse-url "https://orgmode.org/";) and the Org Mode site opened 
in Firefox.

(4) I executed (customize-set-variable 'browse-url-mailto-function nil) and then executed 
(browse-url "mailto:srandby@gmail.com";). The result gave the same error 
messages.

(5) I quit Emacs and ran `emacs -q' (Emacs 28.2, Org 9.5.5).

(6) I executed (browse-url "mailto:srandby@gmail.com";) and the buffer to edit 
an email appeared.

(7) I executed (browse-url "https://orgmode.org/";) and the Org Mode site opened 
in Firefox.

(8) I executed (customize-set-variable 'browse-url-mailto-function nil) and then executed 
(browse-url "mailto:srandby@gmail.com";). The result gave the same error 
messages.

I'm not sure how my configuration can be at fault when `emacs -q' gives the 
same result. I'm not sure what to do now.