423b1c69be7828c331a47467b66217d190e916b9, which in turn
causes all content to be served as text/plain. Let go decide
what the mime type is (e.g. text/html instead of text/plain).

423b1c69be7828c331a47467b66217d190e916b9, which in turn
causes all content to be served as text/plain. Let go decide
what the mime type is (e.g. text/html instead of text/plain).

html, etc

According to http://golang.org/pkg/net/http/#DetectContentType
"If the Header does not contain a Content-Type line, Write adds
a Content-Type set to the result of passing the initial 512 bytes
of written data to DetectContentType."

If the archives/ directory is created with 0655, it results in a permission error.