text: 'use strict';
  
  self.importScripts('vars.js?_=' + Date.now());
  
  self.postMessage({
    GOOGLE_OAUTH2_CLIENT_ID: GOOGLE_OAUTH2_CLIENT_ID,
    GOOGLE_SPREADSHEET_KEY: GOOGLE_SPREADSHEET_KEY,
    LINK_EXPIRES_IN: LINK_EXPIRES_IN
  });
  