I think node >= 8 has WebAssembly

fitzgen · fitzgen · commit 59fab43711cb · 2018-01-17T14:45:27.000-08:00
diff --git a/package.json b/package.json
@@ -54,7 +54,7 @@
     "dist/source-map.js"
   ],
   "engines": {
-    "node": ">=9.3.0"
+    "node": ">= 8"
   },
   "license": "BSD-3-Clause",
   "scripts": {
