Created attachment 1265404 [details]
tag

Description of problem:

when I try to create a group and add a location tag while creating the group I get an error: 

Edit aborted! CFME does not support the browser's back button or access from multiple tabs or windows of the same browser. Please close any duplicate sessions before proceeding.

if I add the group with no tag it succeeds. 
I am not setting this as high/urgent since we can still edit the group and add tags after the creation. 

Version-Release number of selected component (if applicable):

cfme-5.8.0.7-1.el7cf.x86_64
I am running a podfied cfme installed on openshift 3.4 with a remote nfs server

How reproducible:

100%

Steps to Reproduce:
1. deploy podified cfme on openshift 3.4 and add the openshift as a provider to the cfme pod 
2. Navigate to configuration -> access control -> groups
3. create a new group -> in Project/Tenant select "My Company" -> select a tag -> save 
 
Actual results:

we fail to create the group with the following error: 
Edit aborted! CFME does not support the browser's back button or access from multiple tabs or windows of the same browser. Please close any duplicate sessions before proceeding.

Expected results:

we should be able to create the group. 

Additional info: screenshot and logs