itch.io

I had the same problem! Change your asconfig.json file contents to:

{
  "entries": [
    "./src/main.ts"
  ],
  "options": {
    "outFile": "build/cart.wasm",
    "runtime": "incremental",
    "importMemory": true,
    "initialMemory": 1,
    "maximumMemory": 1,
    "noExportMemory": true,
    "zeroFilledMemory": true,
    "memoryBase": 6560,
    "use": [
      "seed=src/wasm4/seedHandler",
      "trace="
    ],     
    "disable": "bulk-memory"
  },
  "targets": {
    "release": {
      "optimizeLevel": 3,
      "shrinkLevel": 1,
      "noAssert": true,
      "use": "abort="
    },
    "debug": {
      "debug": true,
      "sourceMap": "http://localhost:4444/cart.wasm.map",
      "use": "abort=src/wasm4/abortHandler"
    }
  }
}