serve text/plain content with charset=utf-8 header

download.go

@@ -37,9 +37,17 @@ func (this *Server) handleViewInternal(w http.ResponseWriter, r *http.Request, f
 
 	// ServeContent only uses the filename to get the mime type, which we can
 	// set accurately (including blacklist)
-	w.Header().Set(`Content-Type`, m.MimeType)
-	if m.MimeType == `application/octet-stream` {
+
+	switch m.MimeType {
+	case `text/plain`:
+		w.Header().Set(`Content-Type`, `text/plain; charset=UTF-8`)
+
+	case `application/octet-stream`:
+		w.Header().Set(`Content-Type`, m.MimeType)
 		w.Header().Set(`Content-Disposition`, `attachment; filename="`+m.Filename+`"`)
+
+	default:
+		w.Header().Set(`Content-Type`, m.MimeType)
 	}
 
 	http.ServeContent(w, r, "", m.UploadTime, f)