QWebView can't show image while Html file using <img src="file://..."> instead <img src="file:///...">

[kkkiio]

if a html file use <img src="file:///..."> to display a image, it will work well on QWebView, but it can't show while using <img src="file://..."> which indicate path with file:// on QWebView.
Thank you for help!I can't speak in English well, sorry>_<