Add a global interceptor to catch 'conflict.' API responses.
Add a global interceptor to catch 'conflict.' API responses.

MrJoy/ui-for-docker,sureshchouksey/ui-for-docker,MrJoy/ui-for-docker,kevana/ui-for-docker,crosbymichael/dockerui,MrJoy/ui-for-docker,sureshchouksey/ui-for-docker,kevana/ui-for-docker,crosbymichael/dockerui,crosbymichael/dockerui,sureshchouksey/ui-for-docker,kevana/ui-for-docker