smaller wasm binary

-s
	Omit the symbol table and debug information.

-d
	Disable generation of dynamic executables.
	The emitted code is the same in either case; the option
	controls only whether a dynamic header is included.
	The dynamic header is on by default, even without any
	references to dynamic libraries, because many common
	system tools now assume the presence of the header.

buildFrontend.sh

@@ -5,7 +5,7 @@ set -eu
 echo "[1] Build wasm"
 wasmPayloadFile=$(mktemp)
 trap 'rm -f $wasmPayloadFile' ERR EXIT
-GOOS=js GOARCH=wasm go build -o "$wasmPayloadFile" wasm/wasm.go
+GOOS=js GOARCH=wasm go build -ldflags="-s -w" -o "$wasmPayloadFile" wasm/wasm.go
 
 echo "[2] Pack wasm into javascript"
 wasmJsPayloadFile="frontend/js/wasmPayload.js"