I have connected through the data source 'Spark SQL' in tableau Desktop (2018.2). Then I added an extension(Made in Nodejs & ReactJS) in the dashboard. My login page is rendered, after authentication i set a sessionId in the cookie. Then I was making another rest API call to fetch the data. But my request header cookie is empty. While I can see it in the cookie resources. This is working fine in browser, but not in tableau extension dashboard. Screenshots are attached below.