This is a screen shoot of SE I took from here. That's mine. But mine or others are the same, not working, no image is shown. That's makes it difficult for me to understand a topic. I have tried with my browsers with various OSes (Windows, Linux, and Android), but they are not working. Even I tried directly with https://i.stack.imgur.com. Also it is not working. Its comment, security problem. This problem began since few months back. It is quite disturbing.
What is that problem, and how can we solve that?
Additional info: I am Indonesian and stay in Indonesia. That situation has happened in the capital city and far outside the capital city.