{
  "title":"Mutation Observer",
  "description":"Method for observing and reacting to changes to the DOM. Replaces MutationEvents, which is deprecated.",
  "spec":"https://dom.spec.whatwg.org/#mutation-observers",
  "status":"ls",
  "links":[
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/API/MutationObserver",
      "title":"MutationObserver from MDN"
    },
    {
      "url":"https://github.com/webcomponents/webcomponentsjs",
      "title":"Polyfill"
    }
  ],
  "bugs":[
    {
      "description":"iOS 6 has a `WebKitMutationObserver` bug: it doesn't trigger `\"childList\"` changes until you bind one of the deprecated mutation events (for example, `\"DOMNodeInserted\"`) to the node being watched by the observer."
    },
    {
      "description":"IE11 does not include the child nodes when they are removed by setting the `innerHTML` [see bug](https://connect.microsoft.com/IE/feedback/details/817132/ie-11-childnodes-are-missing-from-mutationobserver-mutations-removednodes-after-setting-innerhtml)."
    }
  ],
  "categories":[
    "DOM",
    "JS API"
  ],
  "stats":{
    "ie":{
      "5.5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
      "9":"p",
      "10":"p",
      "11":"y"
    },
    "edge":{
      "12":"y",
      "13":"y",
      "14":"y",
      "15":"y",
      "16":"y",
      "17":"y",
      "18":"y",
      "79":"y",
      "80":"y",
      "81":"y",
      "83":"y",
      "84":"y"
    },
    "firefox":{
      "2":"n",
      "3":"n",
      "3.5":"n",
      "3.6":"n",
      "4":"n",
      "5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
      "9":"n",
      "10":"n",
      "11":"n",
      "12":"n",
      "13":"n",
      "14":"y",
      "15":"y",
      "16":"y",
      "17":"y",
      "18":"y",
      "19":"y",
      "20":"y",
      "21":"y",
      "22":"y",
      "23":"y",
      "24":"y",
      "25":"y",
      "26":"y",
      "27":"y",
      "28":"y",
      "29":"y",
      "30":"y",
      "31":"y",
      "32":"y",
      "33":"y",
      "34":"y",
      "35":"y",
      "36":"y",
      "37":"y",
      "38":"y",
      "39":"y",
      "40":"y",
      "41":"y",
      "42":"y",
      "43":"y",
      "44":"y",
      "45":"y",
      "46":"y",
      "47":"y",
      "48":"y",
      "49":"y",
      "50":"y",
      "51":"y",
      "52":"y",
      "53":"y",
      "54":"y",
      "55":"y",
      "56":"y",
      "57":"y",
      "58":"y",
      "59":"y",
      "60":"y",
      "61":"y",
      "62":"y",
      "63":"y",
      "64":"y",
      "65":"y",
      "66":"y",
      "67":"y",
      "68":"y",
      "69":"y",
      "70":"y",
      "71":"y",
      "72":"y",
      "73":"y",
      "74":"y",
      "75":"y",
      "76":"y",
      "77":"y",
      "78":"y",
      "79":"y",
      "80":"y",
      "81":"y",
      "82":"y"
    },
    "chrome":{
      "4":"n",
      "5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
      "9":"n",
      "10":"n",
      "11":"n",
      "12":"n",
      "13":"n",
      "14":"n",
      "15":"n",
      "16":"n",
      "17":"n",
      "18":"y x",
      "19":"y x",
      "20":"y x",
      "21":"y x",
      "22":"y x",
      "23":"y x",
      "24":"y x",
      "25":"y x",
      "26":"y x",
      "27":"y",
      "28":"y",
      "29":"y",
      "30":"y",
      "31":"y",
      "32":"y",
      "33":"y",
      "34":"y",
      "35":"y",
      "36":"y",
      "37":"y",
      "38":"y",
      "39":"y",
      "40":"y",
      "41":"y",
      "42":"y",
      "43":"y",
      "44":"y",
      "45":"y",
      "46":"y",
      "47":"y",
      "48":"y",
      "49":"y",
      "50":"y",
      "51":"y",
      "52":"y",
      "53":"y",
      "54":"y",
      "55":"y",
      "56":"y",
      "57":"y",
      "58":"y",
      "59":"y",
      "60":"y",
      "61":"y",
      "62":"y",
      "63":"y",
      "64":"y",
      "65":"y",
      "66":"y",
      "67":"y",
      "68":"y",
      "69":"y",
      "70":"y",
      "71":"y",
      "72":"y",
      "73":"y",
      "74":"y",
      "75":"y",
      "76":"y",
      "77":"y",
      "78":"y",
      "79":"y",
      "80":"y",
      "81":"y",
      "83":"y",
      "84":"y",
      "85":"y",
      "86":"y",
      "87":"y",
      "88":"y"
    },
    "safari":{
      "3.1":"n",
      "3.2":"n",
      "4":"n",
      "5":"n",
      "5.1":"n",
      "6":"y x",
      "6.1":"y",
      "7":"y",
      "7.1":"y",
      "8":"y",
      "9":"y",
      "9.1":"y",
      "10":"y",
      "10.1":"y",
      "11":"y",
      "11.1":"y",
      "12":"y",
      "12.1":"y",
      "13":"y",
      "13.1":"y",
      "14":"y",
      "TP":"y"
    },
    "opera":{
      "9":"n",
      "9.5-9.6":"n",
      "10.0-10.1":"n",
      "10.5":"n",
      "10.6":"n",
      "11":"n",
      "11.1":"n",
      "11.5":"n",
      "11.6":"n",
      "12":"n",
      "12.1":"n",
      "15":"y",
      "16":"y",
      "17":"y",
      "18":"y",
      "19":"y",
      "20":"y",
      "21":"y",
      "22":"y",
      "23":"y",
      "24":"y",
      "25":"y",
      "26":"y",
      "27":"y",
      "28":"y",
      "29":"y",
      "30":"y",
      "31":"y",
      "32":"y",
      "33":"y",
      "34":"y",
      "35":"y",
      "36":"y",
      "37":"y",
      "38":"y",
      "39":"y",
      "40":"y",
      "41":"y",
      "42":"y",
      "43":"y",
      "44":"y",
      "45":"y",
      "46":"y",
      "47":"y",
      "48":"y",
      "49":"y",
      "50":"y",
      "51":"y",
      "52":"y",
      "53":"y",
      "54":"y",
      "55":"y",
      "56":"y",
      "57":"y",
      "58":"y",
      "60":"y",
      "62":"y",
      "63":"y",
      "64":"y",
      "65":"y",
      "66":"y",
      "67":"y",
      "68":"y",
      "69":"y",
      "70":"y"
    },
    "ios_saf":{
      "3.2":"n",
      "4.0-4.1":"n",
      "4.2-4.3":"n",
      "5.0-5.1":"n",
      "6.0-6.1":"y x",
      "7.0-7.1":"y",
      "8":"y",
      "8.1-8.4":"y",
      "9.0-9.2":"y",
      "9.3":"y",
      "10.0-10.2":"y",
      "10.3":"y",
      "11.0-11.2":"y",
      "11.3-11.4":"y",
      "12.0-12.1":"y",
      "12.2-12.4":"y",
      "13.0-13.1":"y",
      "13.2":"y",
      "13.3":"y",
      "13.4-13.5":"y",
      "14.0":"y"
    },
    "op_mini":{
      "all":"n"
    },
    "android":{
      "2.1":"n",
      "2.2":"n",
      "2.3":"n",
      "3":"n",
      "4":"p",
      "4.1":"p",
      "4.2-4.3":"p",
      "4.4":"y",
      "4.4.3-4.4.4":"y",
      "81":"y"
    },
    "bb":{
      "7":"n",
      "10":"y"
    },
    "op_mob":{
      "10":"n",
      "11":"n",
      "11.1":"n",
      "11.5":"n",
      "12":"n",
      "12.1":"n",
      "46":"y"
    },
    "and_chr":{
      "84":"y"
    },
    "and_ff":{
      "79":"y"
    },
    "ie_mob":{
      "10":"p",
      "11":"y"
    },
    "and_uc":{
      "12.12":"y"
    },
    "samsung":{
      "4":"y",
      "5.0-5.4":"y",
      "6.2-6.4":"y",
      "7.2-7.4":"y",
      "8.2":"y",
      "9.2":"y",
      "10.1":"y",
      "11.1-11.2":"y",
      "12.0":"y"
    },
    "and_qq":{
      "10.4":"y"
    },
    "baidu":{
      "7.12":"y"
    },
    "kaios":{
      "2.5":"y"
    }
  },
  "notes":"When changing the `innerHTML` content of a node containing a single `CharacterData` node, resulting in a single-but-different `CharacterData` child node, WebKit browsers consider this a `characterData` mutation of the child `CharacterData` node, while other browsers consider it a `childList` mutation of the parent node.",
  "notes_by_num":{
    
  },
  "usage_perc_y":96.94,
  "usage_perc_a":0,
  "ucprefix":false,
  "parent":"",
  "keywords":"MutationObserver",
  "ie_id":"mutationobservers",
  "chrome_id":"5021194726146048",
  "firefox_id":"",
  "webkit_id":"",
  "shown":true
}