It works fine for me on Chrome (Linux or Android), Edge(ium, on Linux and Windows) and Firefox (Linux, for some reason not Android). It fails on Gnome Web (which is WebKit GTK), which is the closest I could get to Safari, because of SharedArrayBuffers being unavailable [0]. It seems like WebKit hasn't re-enabled them since the first Spectre mitigations like Chromium and Firefox have.
One reason it could fail for you on Chrome is that perhaps you tested on iOS; Chrome on iOS shouldn't make or break web applications because Apple forces WebKit onto every browser on that platform, so they're all Safari with a skin. A broken website in iOS Safari is usually broken in all other browsers by Apple's design.
Otherwise the code should work fine on up-to-date Chrome across all real Chrome platforms, unless you specifically toggled flags...
