asolove/Smallest-Federated-Wiki — comment on commit f4b7c22881e7d60371c106af9724c709d19824b4
File: client/client.coffee line 22
By asolove:

I don't think it's a problem. I certainly have lots of logging in my production code. The change here just makes sure that we don't call "console.log" if the console object doesn't exist. (Like in IE or old versions of Firefox without developer tools installed). This was causing the entire application to fall over in those browsers.