Loading large XML file

Using the grid component to display a large XML file. Has been successful until now.

The following page http://www.assero.co.uk/source/CDISCTermDiff.html?filename=V40ToV39CompareGridV2.xml works in Chrome, IE & Firefox on PC (Win 7) and Chrome on Mac (Yosemite) but not in Safari on Mac.

I dont get any errors when loading, just a blank grid. Any ideas?

Unfortunately the issue cannot be reproduced locally.
Your link works well for me in Safari on Mac
prntscr.com/6ysv08

It worked fine for me also.

Safari Version 7.1.5 (9537.85.14.17)

OS X 10.9.5