How jQuery handle cross domain requests errors?

Question

Considering that I don't have a callback method defined before and the following code:

jQuery.ajax({
            url: 'url',
            type: 'GET',
            data: {},
            dataType: 'jsonp',
            crossDomain: true,
            jsonpCallback: callback,
            async: true,
            success: function ( pData ) {
                //process success
            },
            error: function (jqXHR, textStatus, errorThrown) {
                //Log error
            }
});

The jQuery is handling the ajax Events ( success/error ) properly, with no error. Why jQuery are doing that if in the API documentation is saying they can't do that? And sometimes I get parserror, but I'm always returning the same content as JSON.

Has anyone experienced this?

Where does the documentation say it can't do that? jsonp is why it works.... — random_user_name
– random_user_name, Commented Aug 8, 2013 at 20:01
you can't. jsonp requests do not trigger the error callback in recent versions of jQuery. I'm not entirely sure how previous versions handled it. This is the intended behavior. "Note: This handler is not called for cross-domain script and cross-domain JSONP requests." What version of jQuery are you using? — user400654
– user400654, Commented Aug 8, 2013 at 20:01
I'm using jQuery v1.6.1. I know that it's a old version, but is a environment limitation. — Francisco Berrocal
– Francisco Berrocal, Commented Aug 8, 2013 at 20:15

Dr.Molle · Accepted Answer · 2013-08-08 20:25:30Z

1

It depends on the type of error.

A parseerror may be catched(and will be catched )by jQuery when you use JSONP.(the documentation is not exact in this case)

But network-errors may not be catched, because JSONP does not make use of XMLHttpRequest, and therefore will not receive any status-codes that may indicate an error.

answered Aug 8, 2013 at 20:25

Dr.Molle

117k16 gold badges200 silver badges206 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

How jQuery handle cross domain requests errors?

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related