force plain text for header response
force plain text for header response

Change-Id: I239a1ccc530ce652cc2165eef38b9f8193769102
Closes-Bug: #1785606

ChameleonCloud/horizon,NeCTAR-RC/horizon,NeCTAR-RC/horizon,openstack/horizon,noironetworks/horizon,noironetworks/horizon,openstack/horizon,openstack/horizon,noironetworks/horizon,openstack/horizon,NeCTAR-RC/horizon,ChameleonCloud/horizon,ChameleonCloud/horizon,ChameleonCloud/horizon,noironetworks/horizon,NeCTAR-RC/horizon