Android appending additional headers

问题

When receiving a response from a volley request, the following headers are appended:

X-Android-Received-Millis:1395544235409

X-Android-Response-Source:NETWORK 200

X-Android-Sent-Millis:1395544235363

According to Android Network Monitor tool, the above headers contribute to the data usage by the app and I was wondering if there's a way to prevent them from being appended to the response header?

Thanks

来源：https://stackoverflow.com/questions/40306887/android-appending-additional-headers