Open a new Google Chrome instance with disable-web-security
flag. So that no cross-domain problem would occur.
Run the following command in Terminal (for MacOS only), where /Volumes/Temp/ChromeDir
is the user data directory (choose a empty folder for first time).
open -na /Applications/Google\ Chrome.app/ --args --user-data-dir=/Volumes/Temp/ChromeDir --disable-web-security