old_contents: from django.shortcuts import render
  from django.views.decorators.csrf import ensure_csrf_cookie
  
  
  @ensure_csrf_cookie
  def app(request):
      return render(request, 'html.html')
  
new_contents: from django.shortcuts import render
  
  def app(request):
      return render(request, 'html.html')
  
subject: Stop inserting the CSRF token into the main app page