<svg xmlns="http://www.w3.org/2000/svg"> <!-- Test that an indefinite to-animation that falls back to discrete calcMode because the property is not interpolatable, applies the underlying value for the whole time. --> <rect x="15" y="15" width="200" height="200" fill="blue" visibility="visible"> <animate attributeName="visibility" to="hidden" dur="indefinite"/> </rect> </svg>