When the doorbell leaves you outside the house

Further advancement has created and the video door bell, which allows people in the house to see who is at the door for their safety. The days are gone when the door is open and you know who's behind it. But today on screen you see who you're gonna open the door to and who you're not.

But these devices have their problems, and recently a father was left out of the house because of this. J.B. has tweeted his story. A Javascript programmer has not recognized the encryptions and experimented with parts of his video call about his needs. So he had programmed the door to lock automatically if the camera caught an unknown face, and could only open from the inside. But he fell prey to his plan.

He was out in the courtyard to see the boy playing, and when he tried to get inside the door, he wouldn't open. Later, he saw what was wrong with the programming, and he saw that the camera focused the batman on his shirt.