Comment 2 for bug 1610722

The situation where this reprocessing fails is when files are taken from the output of the RSS aggregator rawdog. I've attached an example source file here.

$ pandoc -o Feeds-reprocessed.html -f html -t html5 --self-contained Feeds.html

pandoc: Could not fetch https://2.bp.blogspot.com/-Bnny6lL9DkY/V67nsSYFLMI/AAAAAAAABmU/vII8_kOujh8ujsy6OamtcvNtL_E-8vzUACLcB/s640/ADDX.jpg
TlsExceptionHostPort (HandshakeFailed Error_EOF) "2.bp.blogspot.com" 443

In contrast, if I attempt instead:

$ pandoc -o Feeds-reprocessed.epub -f html -t epub --self
-contained Feeds.html
pandoc: Could not find media `https://2.bp.blogspot.com/-Bnny6lL9DkY/V67nsSYFLMI/AAAAAAAABmU/vII8_kOujh8ujsy6OamtcvNtL_E-8vzUACLcB/s640/ADDX.jpg', skipping...
pandoc: Could not find media `https://4.bp.blogspot.com/-18CvlS_4n8o/V66lnPeUbXI/AAAAAAAANew/ZOHUdJ-C9O4_nIMjcXxzF0OzbNfKDg4yQCLcB/s320/samurai.png', skipping...
pandoc: Could not find media `https://1.bp.blogspot.com/-L_wwB-xz9Jw/V66ceT9fyEI/AAAAAAAANeg/MWU1HetVZ_4ubL1rc2FUqcFt0r5EJcOqQCLcB/s320/hillary%2Bwall.png', skipping...
pandoc: Could not find media `https://2.bp.blogspot.com/-MT4dyuHl0nY/V6z92fpQGhI/AAAAAAAAAgo/_5XZQoat46w8_QYHSvPYtsBxBaZA-Io0gCLcB/s1600/clockboyhonda.jpg', skipping...
pandoc: Could not find media `https://2.bp.blogspot.com/--RayZ7bxBQ0/V6z_fUp6JlI/AAAAAAAAAg0/kvPgPYP-kN0ghfgQBct_mH_wUVEcJZ1HwCLcB/s320/balloonboytrump.PNG', skipping...
pandoc: Could not find media `https://2.bp.blogspot.com/-ObMhaEUnAuw/V60CZUnpofI/AAAAAAAAAhQ/tjAq6TBcMwsSga-ewoOZBvWVwN53C8zWgCLcB/s320/batboy_1_2.jpg', skipping...
pandoc: Could not find media `https://1.bp.blogspot.com/-pIqJp7lHVfU/V60Cs1PUkTI/AAAAAAAAAhU/Oe1JQZOAUcAJVU4JL0m5m0bXkmBofOnLwCLcB/s1600/spacealienbill.jpg', skipping...
pandoc: Could not find media `https://4.bp.blogspot.com/-7auuE8vY4sQ/V60CuVJVW4I/AAAAAAAAAhY/e8UNIgHCn44eSQuTC9kHHY8wvtOSl8vdQCLcB/s1600/spacealienhillary.jpg', skipping...
pandoc: Could not find media `https://4.bp.blogspot.com/-0MQp4idRRR4/V60CwBQzapI/AAAAAAAAAhc/Jw8l3jei7wYah33g_lFPylXWmsK6fExwACLcB/s1600/spacealienobama.jpg', skipping...
pandoc: Could not find media `https://1.bp.blogspot.com/-JhSifWBK1pI/V6byCGJV9cI/AAAAAAAAAdY/Tm7ud8FOvpArQPbuht7-HwLGdSK8VleSQCLcB/s1600/icon_neutral.gif', skipping...
pandoc: Could not find media `http://www.blazingcatfur.ca/wp-content/plugins/add-to-any/icons/facebook.png', skipping...
pandoc: Could not find media `http://www.blazingcatfur.ca/wp-content/plugins/add-to-any/icons/twitter.png', skipping...
pandoc: Could not find media `http://www.blazingcatfur.ca/wp-content/plugins/add-to-any/icons/google_plus.png', skipping...
pandoc: Could not find media `http://www.blazingcatfur.ca/wp-content/plugins/add-to-any/icons/reddit.png', skipping...
pandoc: Could not find media `http://www.blazingcatfur.ca/wp-content/plugins/add-to-any/icons/linkedin.png', skipping...
pandoc: Could not find media `http://www.blazingcatfur.ca/wp-content/plugins/add-to-any/icons/tumblr.png', skipping...
pandoc: Could not find media `http://www.blazingcatfur.ca/wp-content/plugins/add-to-any/icons/whatsapp.png', skipping...

And a somewhat usable EPUB is generated.