Have you tried different dashboard sizes?
Thanks for the reply!
It is something general for all the dashboards--the size does not matter. I think it has to do with the <iframe> tag and how it renders on web-kit browsers.
I encountered the same problem (at least it sounds like the same problem) today and stumbled upon the solution, which I confirmed with someone at Tableau. My viz had three dashboards and I was using tabs to display them. The scrollbars showed up -- in every browser -- because my dashboards were each a different size. They were all the same width (650 pixels), but different depths. I adjusted the depths to be the same and the scrollbars went away.
I am also facing the same issue. I have 2 tabbed dashboards.When i embed it in web page.its showing the scroll bars both horizontal and vertical.
Could you please explain how to adjust size?