The switch statement in javascript sometimes doesn't work correctly in my application built with Qt 5.1 RC.

switch(A) {
case B:
...
}

when A is a string variable from DOM and B is a string literal longer then 3 characters, the code in B block can never be executed even if A===B.

the attachment test.html shows this bug.

click button "Test1", the message is always "your selection is **** !?" in default clause which shouldn't be executed.
click button "Test1.1" or "Test2", the message is "*** selected"