commit - 007a3d09eccd162b288c0584b68b0fdb83becf11
commit + dad28b1a8f4f17dd47854db715221aa985024cef
blob - 7d82adcaf6357ddeada7d8d34d91598ff5c67b7e
blob + 810fea563b939b4c0aa461ae72c010838d6bea8e
--- http.go
+++ http.go
@@ -1,7 +1,6 @@
 package icinga
 
 import (
-	"encoding/json"
 	"io"
 	"net/http"
 )
@@ -15,8 +14,15 @@ func newRequest(method, host, path string, body io.Rea
 		return nil, err
 	}
 	switch req.Method {
+	case http.MethodGet:
+		break
+	case http.MethodDelete:
+		req.Header.Set("Accept", "application/json")
 	case http.MethodPost, http.MethodPut:
+		req.Header.Set("Accept", "application/json")
 		req.Header.Set("Content-Type", "application/json")
+	default:
+		return nil, fmt.Errorf("new request: unsupported method %s", req.Method)
 	}
 	return req, nil
 }