One of your local mirrors listed in /etc/apt/sources.list.d/*.list or /etc/apt/sources.list probably uses https (not a very common scenario for package mirrors), in which case you need the package mentioned above (apt versions below 0.9.15.3 fell back to plain http, if https was unavailable).
Line a broiler pan with aluminum foil, add the top, and spray the top with nonstick cooking spray. Broil the steak 4 to 6 minutes per side: Remove the steak from the marinade, shake off any excess, and place it in the middle of the broiler pan. Slide it directly under the broil. Cook for 4 to 6 minutes, flip it over, and broil for another 4 to 6 minutes (8 to 12 minutes total). Check the steak for doneness: The steak is done when the edges are charred and crispy, and you see some nicely dark searing on the top.
1 Let skillet heat for at least 30 minutes. 2  Carefully put flank steak in pan and close oven door. 3  After 5 minutes, flip the steak (it should be well browned on the bottom) and cook just until juices appear on surface of steak, 3 to 4 minutes more for medium-rare meat. After 5 minutes, flip the steak (it should be well browned on the bottom) and cook just until juices appear on surface of steak, 3 to 4 minutes more for medium-rare meat. ( 2 Alternatively, cook steak under broiler about 2 inches from heat.) Remove steak and let rest on a carving board for 10 minutes.