OLAS/node_modules/caniuse-db/features-json/script-async.json

{
  "title":"async attribute for external scripts",
  "description":"The boolean async attribute on script elements allows the external JavaScript file to run when it's available, without delaying page load first.",
  "spec":"https://html.spec.whatwg.org/multipage/scripting.html#attr-script-async",
  "status":"ls",
  "links":[
    {
      "url":"https://developer.mozilla.org/en/HTML/Element/script#Attributes",
      "title":"MDN Web Docs - Script attributes"
    },
    {
      "url":"http://ie.microsoft.com/testdrive/Performance/AsyncScripts/Default.html",
      "title":"Demo"
    },
    {
      "url":"https://raw.github.com/phiggins42/has.js/master/detect/script.js#script-async",
      "title":"has.js test"
    },
    {
      "url":"http://www.growingwiththeweb.com/2014/02/async-vs-defer-attributes.html",
      "title":"async vs defer attributes"
    }
  ],
  "bugs":[
    
  ],
  "categories":[
    "DOM",
    "HTML5"
  ],
  "stats":{
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    },
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    "ios_saf":{
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    "op_mini":{
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    "android":{
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      "3":"y",
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      "64":"y"
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    },
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      "4":"y",
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  },
  "notes":"",
  "notes_by_num":{
    "1":"Using script.async = false; to maintain execution order for dynamically-added scripts isn't supported in Safari 5.0"
  },
  "usage_perc_y":94.67,
  "usage_perc_a":0.02,
  "ucprefix":false,
  "parent":"",
  "keywords":"",
  "ie_id":"",
  "chrome_id":"",
  "firefox_id":"",
  "webkit_id":"",
  "shown":true
}