About a year ago, i posted an article about allowing the Javascript accessing the local file system in order to read the local JSON file.

• Chrome – Bypass Access-Control-Allow-Origin on local file system

So if you are using Mac, you need to quit the Chrome application. Then execute the following command in Terminal.

/usr/bin/open -a "/Applications/Google Chrome.app" --args --allow-file-access-from-files

Reference: Disable same origin policy in Chrome on Mac OSX