"Unexpected error encountered" when switching from console to manageIQ

[evertmulder]

Error reproducible in euwe, fine and gaprindashvili-2.

This issue happens a lot with users using the console.

See the following movie to reproduce:

https://1drv.ms/v/s!AoQNXmu2r4WTgqEnuX2xuD8yQs-N-A

Open the console, continue working in manageiq .

When returning to manangeiq the following error is presented to the user:

Unexpected error encountered

Errors in Management Engine can be caused by:

① Accessing Management Engine from multiple tabs or windows of the same browser on a single machine. Close any duplicate browser sessions, then select an option from the menu.
② Pressing the back button during a session. 
      Close any duplicate browser sessions, then select an option from the menu.
③ An internal system error. 
      Please contact your administrator for assistance.


Error text:

param is missing or the value is empty: secret [vm_infra/launch_vmware_console]

[skateman]

@evertmulder can you please close this?