957912 - Images don't load when using Reader Mode on local pages with images

Status: NEW

(Toolkit :: Reader Mode, defect, P5)

Description

[Kam-Yung Soh]

User Agent: Mozilla/5.0 (X11; Linux i686 on x86_64; rv:28.0) Gecko/20100101 Firefox/28.0 (Beta/Release)
Build ID: 20140108004006

Steps to reproduce:

I use custom wget scripts to grab web pages and then store it on my Android Table for offline viewing.

I then use Readability Mode to read the offline web pages.

My Android Device info:
Model: Nexus 7 (2012 Edition)
Android Version: 4.4.2
Build Number: KOT49H


Actual results:

Images that display properly in offline web view do not appear in readability mode.

Running adb logcat shows the following errors:
=====
E/GeckoConsole(13203): AboutReader: Init()
E/GeckoConsole(13203): AboutReader: Feching toolbar, header and content notes from about:reader
E/GeckoConsole(13203): AboutReader: Decoding query arguments
E/GeckoConsole(13203): AboutReader: Loading from tab with ID: 0, URL: file:///storage/emulated/legacy/Local/Offline/www.nature.com/news/us-cold-snap-fuels-climate-debate-1.14485.html
E/GeckoConsole(13203): Security Error: Content at about:reader?url=file%3A%2F%2F%2Fstorage%2Femulated%2Flegacy%2FLocal%2FOffline%2Fwww.nature.com%2Fnews%2Fus-cold-snap-fuels-climate-debate-1.14485.html&tabId=0 may not load or link to file:///storage/emulated/legacy/Local/Offline/www.nature.com/news/us-cold-snap-fuels-climate-debate-1.14485.html.
E/GeckoConsole(13203): Security Error: Content at moz-nullprincipal:{b6033932-a63c-4c23-9785-4e93a3c17222} may not load or link to file:///storage/emulated/legacy/Local/Offline/www.nature.com/news/us-cold-snap-fuels-climate-debate-1.14485.html.
[...]
E/GeckoConsole(13203): Security Error: Content at about:reader?url=file%3A%2F%2F%2Fstorage%2Femulated%2Flegacy%2FLocal%2FOffline%2Fwww.nature.com%2Fnews%2Fus-cold-snap-fuels-climate-debate-1.14485.html&tabId=0 may not load or link to file:///storage/emulated/legacy/Local/Offline/www.nature.com/polopoly_fs/7.14750.1389215913%21/image/1.14485.jpg_gen/derivatives/landscape_630/1.14485.jpg.
E/GeckoConsole(13203): Security Error: Content at about:reader?url=file%3A%2F%2F%2Fstorage%2Femulated%2Flegacy%2FLocal%2FOffline%2Fwww.nature.com%2Fnews%2Fus-cold-snap-fuels-climate-debate-1.14485.html&tabId=0 may not load or link to file:///storage/emulated/legacy/Local/Offline/www.nature.com/polopoly_fs/7.14750.1389215913%21/image/1.14485.jpg_gen/derivatives/landscape_630/1.14485.jpg.
[...]
=====


Expected results:

Images that display properly in offline web view to appear in readability mode

Comment 1

[Aaron Train [:aaronmt]]

We natively support offline viewing once you've initially viewed and added the item to your reading list. Is there a reason you're saving locally? It's possible that the HTML you've saved is trying to do a network request to a server to fetch those pictures.

Comment 2

[Kam-Yung Soh]

My workflow:
1. Use wget to download a bunch of links and store them on my local PC in a folder. The script also locally saves images I want (disallow ad images)
2. Connect my tablet, copy the folder to my tablet
3. View the links in the folder using Firefox via file:///

I am not constantly connected to the network, so I usually save the web links when I'm connected, then read offline.

I do not believe the HTML is doing a network request to fetch the pictures. If I view the web page in Firefox in normal mode, I can see the images. If I then tap the Readability Icon to reformat the web page, the images are replaced with 'broken link' placeholders.

Also, the logcat Security Error messages refer to file:/// URLs

Comment 3

[Ralf Jung]

This bug doesn't just apply to "Platform: ARM Android", it has been merged with a similar issue for Firefox on PCs.

Comment 4

[Ralf Jung]

Uh, or so I thought, sorry. Clicked the wrong link in <https://bugzilla.mozilla.org/show_bug.cgi?id=1166829>.