@janriemer I can't point to anything specific and don't have enough experience in WASM anyway.
I just found out that I can't run my program with egui in the browser, most probably because I spawn threads in it. But the debugging experience was… there was none. The error that I got said nothing, similar to the experience with a SEGFAULT. Something went wrong, no idea what.
Don't get me wrong, WASM is the future, but not the present for me.