Hi Max:
Best case would be to setup an animated SVG as a custom pre-loader element to run as web site loads and stop when loading is successful. Not sure why my version of what @h_classen suggested isn't functioning in my file. Likely my programming errors and understanding (o: I plan to use the hype Pre-loader Genie or even the Hype Document Loader after I understand the basics better, however, I am still learning how all this fits together. (o: