Merge pull request #13458 from soltysh/bug1433244

Merged by openshift-bot

Author: OpenShift Bot

pkg/cmd/server/kubernetes/master_config.go

@@ -61,7 +61,7 @@ import (
 
 // request paths that match this regular expression will be treated as long running
 // and not subjected to the default server timeout.
-const originLongRunningEndpointsRE = "(/|^)buildconfigs/.*/instantiatebinary$"
+const originLongRunningEndpointsRE = "(/|^)(buildconfigs/.*/instantiatebinary|imagestreamimports)$"
 
 var LegacyAPIGroupPrefixes = sets.NewString(genericapiserver.DefaultLegacyAPIPrefix, api.Prefix, api.LegacyPrefix)