urlChanged won't work sometimes

[LinArcX]

Hi. i created a web-engine based application that have lots of static pages and and i use urlChanged signal to handle page redirection.(TBH, i call some c++ functions whenever pages changed.)

But the stranger thing about this signal is that, it won't work sometimes.(I mean the slot won't call)

I don't have any idea why this happens. Any idea or similar experience?

Qt: 5.5.0
I built it with MSVC 2013.

[LinArcX]

It was my fault. there's no wrong with urlChanged. It's Totally ok.