title: Jupyterlab on jupyterhub
body: <p>Requirement: I require JupyterLab and JupyterHub to run side by side.. which mean both shall remain available on the click on URL, If JupyterLab (/lab) URL selected it redirects to JupyterLab or If JupyterHub (/hub) is selected it takes to Jupyter notebool (/hub) without making any manual changes.</p>
  
  <p>I installed JupyterLab on a system running JupyterHub.</p>
  
  <p>When I change the URL manually from /tree  to /lab it redirects between JupyterLab and JupterHub vice versa</p>
  
  <p>If I set c.Spawner.default_url = '/lab' in jupyterhub_config.py it defaults takes me to JupyterLab and if don't set this it defaults goes to JupyterHub.</p>
  
  <p>Question : Can I have 2 different URLs for 1) Jupterhub and 2) JupterLab without making any manual changes in URL.</p>