True full screen progressive video background with scan lines

This is the issue with the swfObject. You can fix it by changing this line of code in index html.

// original code.
swfobject.embedSWF('preview.swf' , 'myContent', '100%', '100%', '9.0.0',false,flashvars, params, attributes);

// changed code
swfobject.embedSWF('preview.swf?'+Math.round(Math.random()*10000) , 'myContent', '100%', '100%', '9.0.0',false,flashvars, params, attributes)