THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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About the preload issue if you really care: https://hstspreload.appspot.com/
X-Content-Type-Options
According to Wikipedia and Owasp, the only defined value, "nosniff", prevents Internet Explorer from MIME-sniffing a response away from the declared content-type. This also applies to Google Chrome, when downloading extensions.