AMR/node_modules/caniuse-db/features-json/xhr2.json

{
  "title":"XMLHttpRequest advanced features",
  "description":"Adds more functionality to XHR (aka AJAX) requests like file uploads, transfer progress information and the ability to send form data. Previously known as [XMLHttpRequest Level 2](https://www.w3.org/TR/2012/WD-XMLHttpRequest-20120117/), these features now appear simply in the XMLHttpRequest spec.",
  "spec":"https://xhr.spec.whatwg.org/",
  "status":"ls",
  "links":[
    {
      "url":"https://developer.mozilla.org/en/XMLHttpRequest/FormData",
      "title":"MDN Web Docs - FormData"
    },
    {
      "url":"https://github.com/jimmywarting/FormData",
      "title":"Polyfill for FormData object"
    },
    {
      "url":"https://www.webplatform.org/docs/apis/xhr/XMLHttpRequest",
      "title":"WebPlatform Docs"
    }
  ],
  "bugs":[
    {
      "description":"Firefox 3.5 and 3.6 partial support refers to only including support for the progress event."
    },
    {
      "description":"WebKit versions 535 and older (r103502) do not implement the onloadend event"
    },
    {
      "description":"IE10 and 11 do not support synchronous requests, with support being phased out in other browsers too. This is due to [detrimental effects](https://xhr.spec.whatwg.org/#sync-warning) resulting from making them."
    },
    {
      "description":"The \"progress\" event is reported to not work in Chrome for iOS "
    },
    {
      "description":"In Internet Explorer the `timeout` property may only be set after calling `open` and before calling `send`."
    }
  ],
  "categories":[
    "DOM",
    "JS API"
  ],
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  },
  "notes":"",
  "notes_by_num":{
    "1":"Partial support refers to not supporting `json` as `responseType`",
    "2":"Partial support refers to not supporting `.timeout` and `.ontimeout`",
    "3":"Partial support refers to not supporting `blob` as `responseType`"
  },
  "usage_perc_y":95.49,
  "usage_perc_a":1.21,
  "ucprefix":false,
  "parent":"",
  "keywords":"formdata,xhr level 2",
  "ie_id":"",
  "chrome_id":"",
  "firefox_id":"",
  "webkit_id":"",
  "shown":true
}