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proxy.http | trim returns "None" instead of "". To test if proxy should be used, when: proxy.http should be good enough. We don't have to test if proxy.http is defined or not. Because it is alredy defined in defaults/main.yaml. Change-Id: Ia6330907d22c3f46586aec16db3eefab1a5bbac9 Task: 28755 Story: 2004717