Given that every iOS browser uses the same engine under the hood, this sounds like a Brave problem. Safari and Chrome are fine.
Author here. I’ll try and fix this. I have a suspicion it’s the CSS glow behind the logo since everything else is the most stupid basic HTML you could imagine.
Nope, I'm not sure it's that. Brave crashes on tinybase.org pages without the glow. I wonder if it's the SVG favicon?