XMLHttpRequest: open() method

Read More at MDN DocsView Spec

Safe to Use

XMLHttpRequest: open() method is considered safe to use.

It’s supported by 94% of global browsers.

Browsers

ChromeDec 11, 2008v1.0.0
26%╱100%
100% of Chrome users are running a supported version.
SafariFeb 2, 2004v1.2.0
5%╱100%
100% of Safari users are running a supported version.
EdgeJul 28, 2015v12.0.0
5%╱100%
100% of Edge users are running a supported version.
FirefoxNov 9, 2004v1.0.0
3%╱100%
100% of Firefox users are running a supported version.

Version Breakdown

 
Agent
Support
Adoption
Chrome
Dec 11, 2008 v1.0.0
26%╱100%
100% of Chrome users are running a supported version.
Dec 11, 2008 – Latest
v1.0.0+
26%╱100%

Full Support

Chrome Android
Jun 27, 2012 v18.0.0
36%╱100%
100% of Chrome Android users are running a supported version.
Jun 27, 2012 – Latest
v18.0.0+
36%╱100%

Full Support

Edge
Jul 28, 2015 v12.0.0
5%╱100%
100% of Edge users are running a supported version.
Jul 28, 2015 – Latest
v12.0.0+
5%╱100%

Full Support

Firefox
Nov 9, 2004 v1.0.0
3%╱100%
100% of Firefox users are running a supported version.
Nov 9, 2004 – Latest
v1.0.0+
3%╱100%

Full Support

Starting in Firefox 30, synchronous requests on the main thread have been deprecated due to their negative impact on performance and the user experience. Therefore, the async parameter may not be false except in a Worker.

Firefox for Android
Mar 29, 2011 v4.0.0
Firefox for Android supports this feature.
Mar 29, 2011 – Latest
v4.0.0+

Full Support

Starting in Firefox 30, synchronous requests on the main thread have been deprecated due to their negative impact on performance and the user experience. Therefore, the async parameter may not be false except in a Worker.

Internet Explorer
Mar 18, 1999 v5.0.0
0%╱100%
100% of Internet Explorer users are running a supported version.
Mar 18, 1999 – Latest
v5.0.0+
0%╱100%

Full Support

 
Quest Browser
Unknown v5.0.0
Quest Browser supports this feature.
Unknown
v5.0.0+

Full Support

Opera
Apr 19, 2005 v8.0.0
1%╱100%
100% of Opera users are running a supported version.
Apr 19, 2005 – Latest
v8.0.0+
1%╱100%

Full Support

Opera Android
Nov 9, 2010 v10.1.0
Opera Android supports this feature.
Nov 9, 2010 – Latest
v10.1.0+

Full Support

Safari
Feb 2, 2004 v1.2.0
5%╱100%
100% of Safari users are running a supported version.
Feb 2, 2004 – Latest
v1.2.0+
5%╱100%

Full Support

Safari on iOS
Jun 29, 2007 v1.0.0
17%╱100%
100% of Safari on iOS users are running a supported version.
Jun 29, 2007 – Latest
v1.0.0+
17%╱100%

Full Support

Samsung Internet
Apr 27, 2013 v1.0.0
2%╱100%
100% of Samsung Internet users are running a supported version.
Apr 27, 2013 – Latest
v1.0.0+
2%╱100%

Full Support

WebView Android
Dec 9, 2013 v4.4.0
WebView Android supports this feature.
Dec 9, 2013 – Latest
v4.4.0+

Full Support

See Also

Contribute