Totem can't read video over HTTPS on Stretch
Originally created by @intrigeri on #11963 (Redmine)
The test suite noticed this. Reproduced locally, and AppArmor seems to be the culprit:
apparmor="DENIED" operation="exec" profile="/usr/bin/totem" name="/usr/lib/x86_64-linux-gnu/libtotem-plparser18/totem-pl-parser/99-totem-pl-parser-videosite" pid=1465 comm="pool" requested_mask="x" denied_mask="x"
apparmor="DENIED" operation="mknod" profile="/usr/bin/totem" name="/home/intrigeri/.cache/totem-PUSJQY" pid=1468 comm="[src"](src") requested_mask="c" denied_mask="c"