I got it as soon as I started the game.
My memory management isn't great -- as I have several tabs open already.
However, are you using a javascript framework like 'node js'? That's the only way I've seen browser software segfault.
Thanks for the feedback, I will try to run it on a low memory simulated device to see if i can reproduce it,
Not really it is web assembly as i made a custom c++ engine and i use emscripten to generate the web build, so the js part is quite small but it may allocate too much memory at startup, do you use chrome or another browser ?