Most likely not. Please keep in mind that technology changes, and we can't possibly support every old versions of every browser. Even the most popular websites will break at some point if you go back far enough. If you are seeing strange behavior in the game, the first thing you should do is update your browser.
For the Safari Browser, the game supports version 6 and above.
For Internet Explorer, the game supports version 9 and above.
If you have a version older than this, you should update simply for your general internet security, not just for playing the Whole Life Challenge.