XDomainRequest.onprogress

Obsolete
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

This method is called periodically as an event handler for progress events on XDomainRequests, so that code can monitor progress while loading content.

Note: While handling this event, you can look at XDomainRequest.responseText to get the response so far.

Once loading is complete, the XDomainRequest.onload event handler gets called.

Syntax

xdr.onprogress = funcRef;

Parameters

funcRef: A function to call when progress events occur.

Example

var xdr = new XDomainRequest();
xdr.open("POST", "http://example.com/api/method");

xdr.onprogress = function(){
  //Handle Partial Response with xdr.responseText
}

xdr.onload = function(){ 
  //Handle Response with xdr.responseText 
} 

xdr.send("param1=value1&param2=value2");

Specification

Not part of any specification.

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Edge Mobile	Firefox for Android	Opera for Android	iOS Safari	Samsung Internet
Basic support DeprecatedNon-standard	Chrome No support No	Edge No support No	Firefox No support No	IE No support 8 — 11	Opera No support No	Safari No support No	WebView Android No support No	Chrome Android No support No	Edge Mobile No support No	Firefox Android No support No	Opera Android No support No	Safari iOS No support No	Samsung Internet Android No support No

Legend

No support: No support
Non-standard. Expect poor cross-browser support.: Non-standard. Expect poor cross-browser support.
Deprecated. Not for use in new websites.: Deprecated. Not for use in new websites.