Fixing tests

api/datastore/internal/datastoretest/test.go

@@ -363,7 +363,7 @@ func Test(t *testing.T, ds models.Datastore) {
 					"THIRD": "3",
 				},
 				Headers: http.Header{
-					"First": []string{"test", "test2"},
+					"First": []string{"test2"},
 					"Third": []string{"test", "test2"},
 				},
 			}

api/models/route.go

@@ -150,9 +150,7 @@ func (r *Route) Update(new *Route) {
 			if len(v) == 0 {
 				r.Headers.Del(k)
 			} else {
-				for _, val := range v {
-					r.Headers.Set(k, val)
-				}
+				r.Headers[k] = v
 			}
 		}
 	}