无法从生产中访问网站图标（清单：行：1，列：1，语法错误。）答案

【问题标题】：Can't access favicon from Production (Manifest: Line: 1, column: 1, Syntax error.)无法从生产中访问网站图标（清单：行：1，列：1，语法错误。）
【发布时间】：2021-11-22 13:16:11
【问题描述】：

当我为我的网站http://thymelessapp.com/thymelessfavicon.ico 部署到生产环境时，我无法访问该网站图标，即使它在我的本地版本中也可以使用。

我在控制台中看到以下错误，我认为这是相关的：

清单：行：1，列：1，语法错误。

我也无法访问我的 react 应用程序的公共文件夹中的任何其他资产。我们在生产服务器中使用 gcloud。

这是我们的清单文件：

{
  "short_name": "Thymeless",
  "name": "Thymeless",
  "icons": [
    {
      "src": "thymelessfavicon.ico",
      "sizes": "64x64 32x32 24x24 16x16",
      "type": "image/x-icon"
    },
    {
      "src": "logo192.png",
      "type": "image/png",
      "sizes": "192x192"
    },
    {
      "src": "logo512.png",
      "type": "image/png",
      "sizes": "512x512"
    }
  ],
  "start_url": ".",
  "display": "standalone",
  "theme_color": "#000000",
  "background_color": "#ffffff"
}

这是我的 index.html 文件：

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8" />

    <link rel="icon" href="../src/images/thymelessfavicon.ico" />

    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <meta name="theme-color" content="#000000" />
    <meta
      name="description"
      content="Thymeless helps you order freshly-made meals for your week from meal-prep services near you
"
    />
    <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
    <!--
      manifest.json provides metadata used when your web app is installed on a
      user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
    -->
    <link rel="manifest" crossorigin="use-credentials"  href="%PUBLIC_URL%/manifest.json" />
    <!--
      Notice the use of %PUBLIC_URL% in the tags above.
      It will be replaced with the URL of the `public` folder during the build.
      Only files inside the `public` folder can be referenced from the HTML.

      Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
      work correctly both with client-side routing and a non-root public URL.
      Learn how to configure a non-root public URL by running `npm run build`.
    -->
    <title>Thymeless</title>
  </head>
  <body>
    <noscript>You need to enable JavaScript to run this app.</noscript>
    <div id="root"></div>
    <!--
      This HTML file is a template.
      If you open it directly in the browser, you will see an empty page.

      You can add webfonts, meta tags, or analytics to this file.
      The build step will place the bundled scripts into the <body> tag.

      To begin the development, run `npm start` or `yarn start`.
      To create a production bundle, use `npm run build` or `yarn build`.
    -->
  </body>
</html>

【问题讨论】：

您是否在 GCP 上打开了可能阻止其正确加载的 IAP？请确认。
这是我第一次听说。将确认。
确认我们没有为项目@DivyaniYadav开启IAP

标签： reactjs google-app-engine gcloud

【解决方案1】：

原来我必须修改我的 app.yaml 文件才能让 gcloud 上传网站图标：

runtime: python27
threadsafe: true

service: default

handlers:
- url: /static
  static_dir: build/static

- url: /favicon\.ico
  static_files: build/favicon.ico
  upload: build/favicon\.ico

- url: .*
  static_files: build/index.html
  upload: build/index.html
  secure: always
  redirect_http_response_code: 301

现在可以了！

【讨论】：