Hi,
I ran across thesame issue, I'm using Cp6, and found the solution in modifying /assets/js/CPLibrary.js file in following way:
Line 23528 there is following function:
function SetScaleAndPosition()
Line 23576 there is following condition:
if(cp.verbose)
{
cp.log(cp.model.data.project.shc);
cp.log(cp.movie.m_scaleFactor);
cp.log(cp.shouldScale);
}
Prior to that condition from line 23576, I placed this code:
if( (cp.movie.m_scaleFactor >= 1.0))
return true;
This limits scaling to 100% only, or lower.
However, when using scalable html5 content in Cp6, I encountered problems with smart shapes buttons (they do not work), so, if what is above works for You, I would appreciate, if You could inform me, if, in Cp8, there is no problem with smart shapes buttons when using scalable html5, thanks in advance.