GNU bug report logs - #22075
24.5; [EWW] eww handle link anchor not correctly

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From: Alexis <flexibeast <at> gmail.com>
To: 刘李进 <liulijin <at> interrcs.com>
Cc: 22075 <at> debbugs.gnu.org
Subject: bug#22075: 24.5; [EWW] eww handle link anchor not correctly
Date: Sat, 05 Dec 2015 15:08:19 +1100

刘李进 <liulijin <at> interrcs.com> writes:

> I found that the eww seems handle link anchor not 
> correctly. Reproduce step:
>
> 1. download the html file in attachment (comes from dash lua5.1 
> docset).  2. eww open the link: 
> file:///path-to/file#//apple_ref/func/string%2Esub 3. eww cannot 
> navigate to the correct position.  4. open the same link in 
> chrome/safari, works fine.

i'm able to reproduce this on 24.5.3 manually compiled on Debian 
Jessie x86_64.

`eww' eventually calls `eww-display-html', which contains:

   (cond 
    (point 
     (goto-char point)) 
    (shr-target-id 
     (goto-char (point-min)) (let ((point 
     (next-single-property-change 
                   (point-min) 'shr-target-id))) 
       (when point 
         (goto-char point))))

Stepping through this, `shr-target-id' correctly contains 
"//apple-ref/func/string%2Esub", so that `cond' branch is 
taken. However, the call to `next-single-property-change' returns 
nil, suggesting that the relevant anchor hasn't been properly 
propertised, resulting in the `when point' test failing.

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