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This feature is obsolete.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.
An event handler which is called when an XDomainRequest encounters an error.
Note: There is no way to determine the cause of the error from the XDomainRequest interface.
Syntax
xdr.onerror = funcRef;
Parameters
funcRef- A function to call when an error occurs.
Example
var xdr = new XDomainRequest();
xdr.open("POST", "https://example.com/api/method");
xdr.onerror = function(){
//Handle Error
}
xdr.onload = function(){
//Handle Response with xdr.responseText
}
xdr.send("param1=value1¶m2=value2");
Specification
Not part of any specification.
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| XDomainRequest | Not supported | Not supported | 8.0 Not supported 9.0 |
Not supported | Not supported |
| Feature | Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|
| XDomainRequest | Not supported | Not supported | ? | Not supported | Not supported |