有个QA 问我：

Hi Charles,

There is a login issue in IE8, pls refer to following screenshot.  Please help, thank you!

Step:

1.       Go to , input username and pwd;

2.       Click Login.

 我答：

Hi Lisa/Helen:

This is because we have added some debug code such as

console.log()  in line 10

in javascript

But ,console.log() only supports Firefox,Chrome,Safari etc ,and IE doesn’t support it  ,that’s why you come across with this problem.so please remove them.