On Tue, 12 Nov 2019 22:06:21 -0600, Dean Hoffman wrote:

Be thankful the NEC or whoever doesn't
require gfci on all extension cords.

Also, both ends should have lots of different coloured LEDs'. At the plug
end, green or red to say if the outlet is okay, and at the socket end green
or red to say if the cord was properly manufactured. You can never be too
careful.