Token Fetcher, Immersive Reader Launcher

launch-the-immersive.js

tokenGetOverHereandLaunch() {
  fetch(tokenURL, { credentials: `include`, cache: "no-store" })
    .then(response => response.json())
    .then(body => {
      // https://docs.microsoft.com/en-us/azure/cognitive-services/immersive-reader/reference#chunk
      const data = {
        chunks: [{
          content: htmlContent,
          lang: "en-us",
          mimeType: "text/html"
        }]
      };
      // https://docs.microsoft.com/en-us/azure/cognitive-services/immersive-reader/reference#options
      const options = {
        uiLang: "en-us",
        timeout: 90,
        uiZIndex: 5,
        useWebview: true,
        onExit: () => console.log("Closing Immersive Reader"),
        allowFullscreen: false,
        hideExitButton: false,
        cookiePolicy: CookiePolicy,
        disableFirstRun: false,
        readAloudOptions: ReadAloudOptions,
        translationOptions: TranslationOptions,
        displayOptions: DisplayOptions,
      }
      // The backend service needs to be configured to fetch the token from the authentication directory 
      launchAsync(body.token, body.subdomain, data, options)
        .catch(function (error) {
          console.log(`Error in launching the Immersive Reader: ${error}`);
        });
    })
    .catch((error) => {
      console.error(`Error: ${error}`);
    });
}