fix

app/controllers/traces/projects_controller.rb

@@ -60,7 +60,7 @@ class Traces::ProjectsController < Traces::BaseController
     domain = Trace.trace_config[:domain]
     base_url = Trace.trace_config[:base_url]
     url = "/user/pdfreport?task_id=#{params[:task_id]}"
-    file_path = [domain, api_url, url].join
+    file_path = [domain, base_url, url].join
     request.headers["Authorization"] = current_user.trace_token
     redirect_to file_path
   rescue Exception => exception