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* bug#38831: IceCat: some codecs don't work without workaround
@ 2019-12-31 14:24 Jakub Kądziołka
  0 siblings, 0 replies; 9+ messages in thread
From: Jakub Kądziołka @ 2019-12-31 14:24 UTC (permalink / raw)
  To: 38831

Hello,

I had some problems with video codecs in IceCat 68.3.0-guix0-preview1.
For example, consider this page: http://demo.nimius.net/video_test/. By
default, the videos under the headings H.264 / AAC and MPEG4 don't work
("No video with supported format and MIME type found.").

The following steps make the first of these videos work:
1. Open about:config
2. Click "I accept the risk!"
3. Set security.sandbox.content.read_path_whitelist to /gnu/store/
   (the trailing / is important).

The instructions were originally sketched out in this help-guix
message:
https://lists.gnu.org/archive/html/help-guix/2019-12/msg00150.html

I believe it would be beneficial to make this a default.

On IRC, bandali suggested that it would be better to only whitelist the
necessary store subdirectories. I don't know how to gather such a list,
but it it seems like a good idea.

I don't know how about:config entries modified by the user behave when
IceCat is updated, but in some of the behaviors I can imagine, the
config entry stops updating, in which case it would be better to add
the paths to some internal whitelist (I reckon such a whitelist already
exists and contains something like /usr/lib).

Regards,
Jakub Kądziołka

CC: mhw as suggested by nckx

^ permalink raw reply	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2020-01-16 12:30 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
     [not found] <87blts4gmv.fsf@gmail.com>
2019-11-03 16:33 ` Video Rendering Issues on IceCat Raghav Gururajan
2019-11-03 22:37   ` bug#38045: " Christopher Lemmer Webber
2019-11-04  0:41   ` Chris Marusich
2019-11-04 13:02   ` Raghav Gururajan
     [not found]   ` <973472324a8a0c24073a9f7106bff044@disroot.org>
2019-11-04 16:25     ` Mark H Weaver
     [not found]     ` <874kzjmww2.fsf@netris.org>
2019-11-04 16:36       ` Mark H Weaver
2020-01-16  6:24   ` bug#38045: IceCat: some codecs don't work without workaround Mark H Weaver
2020-01-16 12:29     ` bug#38831: " Julien Lepiller
2019-12-31 14:24 Jakub Kądziołka

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