{
 "notes": "Older iOS versions and Android 4.0.4 claim support, but implementation is too buggy to be useful.", 
 "support": {
  "Android Browser": "y 4.2", 
  "Baidu Browser": "y 7.12", 
  "Blackberry Browser": "y 7", 
  "Chrome": "y 5", 
  "Chrome for Android": "y 74", 
  "Edge": "y 12", 
  "Firefox": "y 4", 
  "Firefox for Android": "y 66", 
  "IE": "y 10", 
  "IE Mobile": "y 10", 
  "KaiOS Browser": "y 2.5", 
  "Opera": "y 11.5", 
  "Opera Mini": "n all", 
  "Opera Mobile": "y 11.1", 
  "QQ Browser": "y 1.2", 
  "Safari": "y 6", 
  "Samsung Internet": "y 4", 
  "UC Browser for Android": "y 11.8", 
  "iOS Safari": "y 5.0"
 }, 
 "url": "https://html.spec.whatwg.org/multipage/browsers.html#dom-history-pushstate"
}