How to see these characters correctly? If I view https://zh.wikipedia.org/wiki/%E5%85%B1%E5%92%8C%E5%88%B6 on macOS 10.12.2 and Chrome Version 55.0.2883.95 (64-bit). It shows a few characters as rectangles with a question mark inside:



How to make these characters show up correctly?
No problem seeing them on my iPad, they are Arabic, must be a chrome bug.