Templates page blank if endpoint not yet selected

[linquize]

Bug description

Logout portainer
Login portainer
visit http://localhost:9000/#/templates
Page is blank

Expected behavior
Like other pages that requires an endpoint be selected first, such as containers, images, redirect to portainer.home. Not to show blank page

Briefly describe what you were expecting.

Steps to reproduce the issue:

Steps to reproduce the behavior:

1. Logout portainer
2. Login portainer
3. portainer.home shows, do not click any endpoints
4. visit http://localhost:9000/#/templates
5. Page is blank

Technical details:

• Portainer version: 1.20.1
• Docker version (managed by Portainer): 18.09-ce
• Platform (windows/linux): linux
• Command used to start Portainer (docker run -p 9000:9000 portainer/portainer):
• Browser: Firefox