Use path rather than URL because it should work for http 302:

Feedback:
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/5142#note_14035941

app/controllers/projects/artifacts_controller.rb

@@ -35,10 +35,10 @@ class Projects::ArtifactsController < Projects::ApplicationController
   end
 
   def latest_succeeded
-    target_url = artifacts_action_url(params[:path], project, build)
+    target_path = artifacts_action_path(params[:path], project, build)
 
     if target_url
-      redirect_to(target_url)
+      redirect_to(target_path)
     else
       render_404
     end

app/helpers/gitlab_routing_helper.rb

@@ -152,16 +152,16 @@ module GitlabRoutingHelper
 
   # Artifacts
 
-  def artifacts_action_url(path, project, build)
+  def artifacts_action_path(path, project, build)
     args = [project.namespace, project, build]
 
     case path
     when 'download'
-      download_namespace_project_build_artifacts_url(*args)
+      download_namespace_project_build_artifacts_path(*args)
     when 'browse'
-      browse_namespace_project_build_artifacts_url(*args)
+      browse_namespace_project_build_artifacts_path(*args)
     when 'file'
-      file_namespace_project_build_artifacts_url(*args)
+      file_namespace_project_build_artifacts_path(*args)
     end
   end
 end