{
 "notes": "",
 "support": {
  "Android Browser": "y 80",
  "Baidu Browser": "n 7.12",
  "Blackberry Browser": "n 10",
  "Chrome": "y 55",
  "Chrome for Android": "y 80",
  "Edge": "y 16",
  "Firefox": "y 50",
  "Firefox for Android": "y 68",
  "IE": "n 11",
  "IE Mobile": "n 11",
  "KaiOS Browser": "n 2.5",
  "Opera": "y 42",
  "Opera Mini": "n all",
  "Opera Mobile": "y 46",
  "QQ Browser": "n 1.2",
  "Safari": "y 10",
  "Samsung Internet": "y 6.2",
  "UC Browser for Android": "y 12.12",
  "iOS Safari": "y 10.0"
 },
 "url": "https://dom.spec.whatwg.org/#dom-addeventlisteneroptions-once"
}