The probleme is the same in german language by using 'ÄÜ etc.'
To solve this issue, I think it could be the smartest way to insert "<meta http-equiv="content-type" content="text/html; charset=utf-8">" in the head-section automaticly when a new "index.html" is compiling.
For now, I insert this tag manual every time I compile a new "index.html". It's not the best way to solve the problem, but be sure: it works out...