Firebase deployed react app not working. Uncaught SyntaxError: Unexpected token '<'

Question

当我运行使用 npm start 我的开发服务器时，我在 http://localhost:3000/ 中完美地运行拥有我的应用程序。但是，当我 npm run build 和 firebase deploy 应用程序时，应用程序未运行ning 并抛出错误：未捕获的语法错误：意外的令牌 '<'.

找到我的 firebase.json:

{
  "functions": {
    "predeploy": [
      "npm --prefix \"$RESOURCE_DIR\" run lint"
    ]
  },
  "hosting": {
    "public": "build",
    "ignore": [
      "firebase.json",
      "**/.*",
      "**/node_modules/**"
    ],
    "rewrites": [
      {
        "source": "**",
        "destination": "/index.html"
      }
    ]
  }
}

我试着添加这个，以防万一没有成功捕获：

"headers": [
      {
        "source" : "/sw.js",
        "headers" : [
          {
            "key" : "Cache-Control",
            "value" : "no-store"
          }
        ]
      }
    ]

还有我的package.json：

{
  "name": "marioplan",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "@testing-library/jest-dom": "^5.11.6",
    "@testing-library/react": "^11.2.2",
    "@testing-library/user-event": "^12.6.0",
    "firebase": "^8.2.1",
    "moment": "^2.29.1",
    "react": "^17.0.1",
    "react-dom": "^17.0.1",
    "react-redux": "^7.2.2",
    "react-redux-firebase": "^3.0.0",
    "react-router-dom": "^5.2.0",
    "react-scripts": "4.0.1",
    "redux": "^4.0.5",
    "redux-firestore": "^0.14.0",
    "redux-thunk": "^2.3.0",
    "web-vitals": "^0.2.4"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  },
  "eslintConfig": {
    "extends": [
      "react-app",
      "react-app/jest"
    ]
  },
  "browserslist": {
    "production": [
      ">0.2%",
      "not dead",
      "not op_mini all"
    ],
    "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
    ]
  }
}

我阅读了一些关于“主页”的内容并进行了试验：需要在 packaje.jason 中指定，因为 npm run build 抛出：

该项目是在假设托管在 / 的情况下构建的。您可以使用 package.json.

中的主页字段进行控制

我也尝试删除 npm --prefix \"$RESOURCE_DIR\" run lint predeploy 命令，因为我不清楚它的作用也没有不同的结果。

为了防止有人疑惑，我会检查文件是否实际部署在 firebase 托管控制台中。

Answer 1

您没有提供任何 JavaScript，而是 HTML，这就是意外 < 的来源。我会责怪这个重写规则，它提供了“有限”的意义，因为它总是服务于 index.html:

"rewrites": [
  {
    "source": "**",
    "destination": "/index.html"
  }
]

Firebase deployed react app not working. Uncaught SyntaxError: Unexpected token '<'

Firebase deployed react app not working. Uncaught SyntaxError: Unexpected token '<'

firebase

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