From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nicolas Richard <theonewiththeevillook@yahoo.fr>
Subject: Re: [bug?] Tramp tries to open remote file links
Date: Wed, 18 Jun 2014 16:28:10 +0200
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Sebastien Vauban <sva-news-D0wtAvR13HarG/iDocfnWg@public.gmane.org>
> With it, the problem occurs; without, it does not.

Also note that this is a problem in master only ; maint has an older
version of org-display-inline-images which doesn't use org-element.

> Though, is it normal to try to open a remote PDF file while Emacs is
> unable of displaying it in the buffer (unlike PNG files, IIUC)?

Org Mode is not trying to display the PDF (at least not at that point).
The problems occurs when parsing the buffer : org-element-link-parser
uses expand-file-name to normalize the URI. Should it ? IDK. Nicolas
G might have an opinion on this.

-- 
Nico.