Smoothie web can't upload file

I have use smoothie web two days, all function is good except upload files.
when i upload files ,it always stop here:

Uploading file(s)
•car.gcode (n/a) - 20 bytes, last modified: 2015年1月24日

i have try many files and use different computer, the result is the same.

Imported from wikidot

Maybe something to do with the 年月日 characters not being supported ?

I’m not sure what could be causing this, and if it happens on the browser side or the Smoothie side …

I change the browser to Chrome, it can work now ,thank you !