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bug#34135: IceCat lacks WebGL support

From: Ludovic Courtès
Subject: bug#34135: IceCat lacks WebGL support
Date: Mon, 21 Jan 2019 10:54:24 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux)

Julien Lepiller <address@hidden> skribis:

> Le 21 janvier 2019 09:24:53 GMT+01:00, Ricardo Wurmus <address@hidden> a 
> écrit :
>>Ludovic Courtès <address@hidden> writes:
>>> Hi Julien,
>>> Julien Lepiller <address@hidden> skribis:
>>>> Try setting security.sandbox.content.read_path_whitelist to
>>>> (with a leading /) in about:config.
>>> Setting it to “/gnu/store/” (with a trailing slash) works, thank you!
>>> It turns out that setting LIBGL_DRIVERS_PATH is even unnecessary.
>>> I suppose we should patch the default value of
>>> ‘security.sandbox.content.read_path_whitelist’ in our package.  What
>>> people think?
>>It isn’t much of a sandbox if all of /gnu/store would be permitted. 
>>this be reduced to the paths of store items that are known at build
> You'll have to list every library and there dependencies. Is that
> possible?

That would be possible, yes, though we’d have the build-time
dependencies rather than the run-time dependencies (since we cannot know
the run-time dependencies until IceCat is built.)

That said putting all of /gnu/store wouldn’t be that bad I think—at
least user data remains inaccessible, which is much better than exposing
/usr on FHS distros.



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