Continue / Retake Quiz buttons act differently when Publishing in SWF vs SWF/HTML5

Hi, I use Captivate 7 and when I compare what I publish as SWF/HTML5 with SWF only it seems that there are 2 issues with the SWF/HTML5  site on Chrome (also on Safari)

Issue 1

I have 1 quiz on a course and I have set the Quiz setting to require a Pass to continue. I put the "Retake" Quiz button over the "Continue" button so it covers the continue if the person fails and will show the continue button only if the person passes. (I had also changed the Caption on the Continue button to say Print Certificate)

This works when I publish the course as SWF only. When I publish as SWF/HTML5 and view on Chrome/Safari then when the person fail it seems that the "continue" button still shows and makes the "retake quiz button" transparent or behind the continue button. If the person passes then it works fine.

Issue 2

In the same example if click the "continue" button several time it the website continues even though the person had failed

Not sure if anyone has found this an issue or has a better way for not making the Continue button to appear if the person has failed.

My objective was that there was a Certificate document after the quiz and if the person passes then they can go get the Certificate. If they fail then they cannot go tto the next slide to get the certificate. Maybe there is a better way to do this ?

thanks

Hatim