Google Chrome limitation

This a2spelling dictionary was developed on 2001. Already about 15 years has passed.
I tried to support the colorful function under the Google Chrome browser as IE.
But I couldn't it, because of the Chrome iframe limitation.

Uncaught SecurityError: Blocked a frame with origin "null" from accessing a frame with origin "null". Protocols, domains, and ports must match.
--- Exception: DOMException: Failed to read the 'contentDocument' property from 'HTMLIFrameElement': Blocked a frame with origin "null" from accessing a cross-origin frame. --- related to "The same-origin policy"

So, if you want to enjoy the colorful function, please use the IE browser, now.

★: Someone, please make a colorful a2spelling running on all browser version, instead of me. --- I allow you.

Tip: This failure occurs in local/ stand alone environment, if all files are in remote/ external server case, it works. It's not honest.
IE is honest, it works on local and remote both. Chrome isn't honest it works on remote only. I can't debug Chrome on my local machine. --- Chrome is a bad system.

on 2015.01.30