UserAgent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.81 Safari/537.36

Steps to reproduce the problem:
The correct spelling for Busan is currently Pusan.

What is the expected behavior?
It won't correct my spelling.

What went wrong?
I am going to assume that Chromium took a dictionary from a different project and didn't maintain it at all.

Did this work before? N/A 

Chrome version: 58.0.3029.81  Channel: stable
OS Version: 6.3
Flash Version: 

You people are associated with Google! Why don't you ask Google to open-source a text of the common misspellings?