Here is what I think is going on.  You have a custom skuid header exposed and you have made that header sticky - so it always shows at the top of the page.  In that header you have an image.  When the page loads the sticky header calculations fire to push the page title down by the width of the header.  This happens before the image is loaded,  and so when the extra height of the image is added to the header is pushes it over the underlying page. 

If you go to your div where you are showing your image and add a predefined height there - rather than just depending on the image to provide its own height - then the height will be known before the sticky header calculations are fired.  And things will look better. 

PS - my next band will be called Sticky Header Calculations.  We will play infectious pop with mathematical precision… 

I once was in a band with a bunch of Physics majors called “Assume a Spherical Cow”

Thanks Ben, I wasn’t too sure how to implement what you suggested but I put my header inside of a wrapper component and defined the height there. The page is displaying correctly now in both browsers. 

BTW I look forward to your studio album!