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Propagating quantum errors to Horizon


I am using devstack single node installation with quantum enabled for my openstack learning and quantum plugin development.

Is there a way to send custom error messages from quantum plugin to Horizon to pop it to user?

I tried it by raising exceptions with a message, but horizon never displayed my exception message! For example, when I threw exception in my Create_Network handler, the horizon always displaying - 'Error: There was an error submitting the form. Please try again' instead of my exception message.