QWebview has some javascript error but other browser has no error ( i.e., safari .. )

[redbit]

when i load the "site":http://m.naver.com, javascript console message appear

ReferenceError: Can't find variable: Audio [0 line, undefined source]
TypeError: 'undefined' is not an object [0 line, undefined source]

but other browser has no error!

why it happened?

to get more information read my last "article":http://qt-project.org/forums/viewthread/46541/

please help me