webadmin:Fix for Gluster hook resolve conflicts popup not loading

Fix for Gluster hook resolve conflicts popup not loading properly.
The issue was with parse method getting an empty string
which is not handled appropriately.

Change-Id: I7c51cd249552f8cb37f2e3093a1c0ddca764b859
Signed-off-by: Karnan TC <kchidamb@redhat.com>