bug#24117: 25.1; url-http-create-request: Multibyte text in HTTP request

[Eli Zaretskii]

> From: Sho Takemori <stakemorii@gmail.com>
> Date: Sat, 13 Aug 2016 09:30:35 +0900
> Cc: Eli Zaretskii <eliz@gnu.org>, larsi@gnus.org, schwab@linux-m68k.org, 
>       24117@debbugs.gnu.org
> 
> But I set the language environment by (set-language-environment "Japanese") 
> in ~/.emacs.d/init.el.
> With the configration, I still see the same error when using anaconda-mode.
> 
> And url-mime-charset-string in url-http-create-request is a multibyte stirng

I guess we need to run url-mime-charset-string through
url-http--encode-string as well.  Can you try that?

Thanks.