^$|^(https?:\/\/)?[a-z0-9]+([-.]+[a-z0-9]+)*\.[a-z]{2,10}([0-9]{1,5})?(\/[^\/]*)*\/[^\/]*\.(?:png|svg)$
{ "title": "Example", "value": "https://website-sample/icon.svg"}
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"https://website-sample/icon.svg"