I have fiddler 4.6.x latest, chrome 56 and windows 7 64 bit. I cannot make chrome accept the fiddler root certificate. I posted this issue on stack overflow with the same title. Please search it there and respond on SO or over here. I cannot post the same thing here because of your buggy spam filters. Thank you.
PS - I am on the fence about buying charles proxy. The answers to this post might help me come back to fiddler.