I use frames as a work around. Not the greatest solution but until we get a RIM solution to disable this I'm happy using this.
I created a main HTML page which contains a single row at 100% height and then link to the HTML page I want to display. Only thing that I lose using this method is the scroll bar on the side of the actual device.
<html>
<frameset rows="100%">
<frame src="otherpage.html" />
</frameset>
</html>
Hope this is of some help.
