{
  "name": "whatwg-fetch",
  "description": "A window.fetch polyfill.",
  "version": "2.0.4",
  "main": "./dist/fetch.umd.js",
  "module": "./fetch.js",
  "repository": "github/fetch",
  "license": "MIT",
  "devDependencies": {
    "abortcontroller-polyfill": "^1.1.9",
    "chai": "^4.1.2",
    "eslint": "^4.19.1",
    "eslint-plugin-github": "^1.0.0",
    "karma": "^1.7.1",
    "karma-chai": "^0.1.0",
    "karma-chrome-launcher": "^2.2.0",
    "karma-firefox-launcher": "^1.0.1",
    "karma-mocha": "^1.3.0",
    "mocha": "^4.0.1",
    "promise-polyfill": "6.0.2",
    "rollup": "^0.59.1",
    "url-search-params": "0.6.1"
  },
  "files": [
    "LICENSE",
    "dist/fetch.umd.js",
    "fetch.js"
  ],
  "scripts": {
    "karma": "karma start ./test/karma.config.js --no-single-run --auto-watch",
    "prepublish": "make dist/fetch.umd.js",
    "pretest": "make",
    "test": "karma start ./test/karma.config.js && karma start ./test/karma-worker.config.js"
  }
}

{
  "name": "whatwg-fetch",
  "description": "A window.fetch polyfill.",
  "version": "2.0.4",
  "main": "./dist/fetch.umd.js",
  "module": "./fetch.js",
  "repository": "github/fetch",
  "license": "MIT",
  "devDependencies": {
    "abortcontroller-polyfill": "^1.1.9",
    "chai": "^4.1.2",
    "eslint": "^4.19.1",
    "eslint-plugin-github": "^1.0.0",
    "karma": "^1.7.1",
    "karma-chai": "^0.1.0",
    "karma-chrome-launcher": "^2.2.0",
    "karma-firefox-launcher": "^1.0.1",
    "karma-mocha": "^1.3.0",
    "mocha": "^4.0.1",
    "promise-polyfill": "6.0.2",
    "rollup": "^0.59.1",
    "url-search-params": "0.6.1"
  },
  "files": [
    "LICENSE",
    "dist/fetch.umd.js",
    "fetch.js"
  ],
  "scripts": {
    "karma": "karma start ./test/karma.config.js --no-single-run --auto-watch",
    "prepare": "make dist/fetch.umd.js",
    "pretest": "make",
    "test": "karma start ./test/karma.config.js && karma start ./test/karma-worker.config.js"
  }
}

Rename `prepublish` step to `prepare`
Rename `prepublish` step to `prepare`
