prometheus/web/ui/react-app/public/index.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
    <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico" />
    <meta
      name="viewport"
      content="width=device-width, initial-scale=1, shrink-to-fit=no"
    />
    <meta name="theme-color" content="#000000" />

    <!--
      Placeholders replaced by Prometheus during serving:
      - GLOBAL_CONSOLES_LINK is replaced and set to the consoles link if it exists.
        It will render a "Consoles" link in the navbar when it is non-empty.
      - PROMETHEUS_AGENT_MODE is replaced by a boolean indicating if Prometheus is running in agent mode.
        It true, it will disable querying capacities in the UI and generally adapt the UI to the agent mode.
        It has to be represented as a string, because booleans can be mangled to !1 in production builds.
      - PROMETHEUS_READY is replaced by a boolean indicating whether Prometheus was ready at the time the
        web app was served. It has to be represented as a string, because booleans can be mangled to !1 in
        production builds.
    -->
    <script>
      const GLOBAL_CONSOLES_LINK='CONSOLES_LINK_PLACEHOLDER';
      const GLOBAL_AGENT_MODE='AGENT_MODE_PLACEHOLDER';
      const GLOBAL_READY='READY_PLACEHOLDER';
    </script>

    <!--
      manifest.json provides metadata used when your web app is added to the
      homescreen on Android. See https://developers.google.com/web/fundamentals/web-app-manifest/
    -->
    <link rel="manifest" href="%PUBLIC_URL%/manifest.json" crossorigin="use-credentials"/>
    <!--
      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`.
    -->
    <!--
        The TITLE_PLACEHOLDER magic value is replaced during serving by Prometheus.
        We need it dynamic because it can be overridden by the command line flag `web.page-title`.
    -->
    <title>TITLE_PLACEHOLDER</title>
  </head>
  <body class="bootstrap">
    <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>