44d0b02c67
When the image locations are blank, glance client will get a http response with no content, glance client should show user no data could be found, instead of processing the blank response body that will lead to exception. Glance client will also get a 204 response when an image is in a queued state (this is true for 'master' and liberty/kilo/juno based servers). Closes-Bug: #1472449 Co-Authored-by: Stuart McLaren <stuart.mclaren@hp.com> Change-Id: I5d3d02d6aa7c8dd054cd2933e15b4a26e91afea1