SharedArrayBuffer had been disabled for exactly that reason but has been enabled again for cross-origin isolated pages (https://developer.chrome.com/blog/enabli

SharedArrayBuffer had been disabled for exactly that reason but has been enabled again for cross-origin isolated pages (https://developer.chrome.com/blog/enabling-shared-array-buffer/ https://developer.chrome.com/blog/enabling-shared-array-buff...) - which in turn allows to have 'proper' pthreads in Emscripten: https://emscripten.org/docs/porting/pthreads.html https://emscripten.org/docs/porting/pthreads.html