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+From: David Bremner <david@tethera.net>\r
+To: Austin Clements <aclements@csail.mit.edu>, Daniel Kahn Gillmor\r
+ <dkg@fifthhorseman.net>\r
+Subject: Re: privacy problem: text/html parts pull in network resources\r
+In-Reply-To: <20150121211407.GK22599@csail.mit.edu>\r
+References: <87ppa7q25w.fsf@alice.fifthhorseman.net>\r
+ <20150121211407.GK22599@csail.mit.edu>\r
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+ (x86_64-pc-linux-gnu)\r
+Date: Wed, 21 Jan 2015 22:46:35 +0100\r
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+\r
+Austin Clements <aclements@csail.mit.edu> writes:\r
+\r
+> I have a fix for this on shr buried deep in an old patch series that I\r
+> never got back to: id:1398105468-14317-12-git-send-email-amdragon@mit.edu\r
+>\r
+> For shr, the key is to set shr-blocked-images to ".". However, IIRC,\r
+> in the current notmuch message rendering pipeline, mm overrides this\r
+> variable with something computed from gnus-blocked-images. That said,\r
+> I'm not sure why gnus-blocked-images isn't *already* taking care of\r
+> this, but that's probably the place to start digging.\r
+>\r
+\r
+\r
+My particular maze of twisty configuration ends up in mm-shr, which\r
+seems to ignore shr-blocked-images, but rather pay attention to\r
+gnus-blocked-images and gnus-inhibit-images (does this seem like a bug\r
+to anyone else?)\r
+\r
+At least in emacs 24.4 the default value of gnus-blocked-images is set\r
+to a function gnus-block-private-groups, which is probably unhelpful for\r
+us.\r
+\r
+Customizing gnus-blocked-images to a regex does seem to have some\r
+effect. Also, setting gnus-inhibit-images to non-nil value.\r