Unity web player slow response to first interaction

Hi everybody,

I’m loading a small prototype to the web browser which just consists of unity UI buttons and menus. It loads quickly and works well until you press the first button. Then it takes a long time to respond (~10 s) before opening the appropriate menu. However after it does this the first time, all other interactions respond normally. This happens in both safari and firefox and does not disappear when I recompile. Any thoughts on what this could be?

Issue has been fixed. Apparently the culprit was the font renderer with the method Font.CacheFontForText. The solution was found in this thread:

http://forum.unity3d.com/threads/massive-font-cachefontfortext-cpu-spike-using-default-gui.227022/