I don't have control and I have to figure this out without asking the
engineers who has put the file. I'm trying to get the data from an url
http://www.url.com/path/filename.xml. How can I now if I have access
to passing a callback get parameter?
I'm trying something like this:
var request = new Request.JSONP({
url: 'http://www.url.com/path/filename.xml',
method : 'GET',
callbackKey: 'callback=myfunc'
});
request.send ();
window.myfunc = function(data) {
};
myfunc is supposed to do something, I don't know what.
On Nov 8, 7:03 pm, Sean McArthur <[email protected]> wrote:
> Do you have control over the XML resource? I assume it's coming from some
> back-end script that is generating it. If not, you could ask the engineers
> that do you have access to allow passing a "callback" GET parameter.
>
> On Mon, Nov 8, 2010 at 9:59 AM, Nacho G <[email protected]> wrote:
> > Excuse my ignorance but I'm not sure how to do that and I can't find
> > more information about the jsonp callback
> > Could you give a little example ?
>
> > thanks a lot
>
> > On Nov 8, 6:31 pm, Sean McArthur <[email protected]> wrote:
> > > You could look up the new cross domain request stuff, but using JSONP
> > might
> > > be easier. It's not parsing the XML as JSON.
>
> > > The idea of JSONP is that you make a cross domain request, and provide a
> > > callback function. The server spits out JSON, and wraps it in the
> > callback
> > > function.
>
> > > my_callback({ "a":"stuff", "b":"otherstuff"});
>
> > > Request.JSONP makes the callback stuff real easy for you. As well, this
> > > request is put inside a script element, so it can execute as JavaScript.
> > To
> > > get your XML request to work, it would have to wrap the XML with the
> > > callback method that Request.JSONP is sending, and escape all the XML to
> > fit
> > > inside a single string.
>
> > > my_callback('<things><thing id="one">a thing</thing><thing id="two">it\'s
> > > another thing</thing></things>');
>
> > > On Mon, Nov 8, 2010 at 8:43 AM, Nacho G <[email protected]> wrote:
> > > > Hello, I'm trying to get data from a remote XML file but I'm getting a
> > > > preflight request with REQUEST because I'm requesting a cross-domain
> > > > XMLHttpRequest.
>
> > > > With Request.JSONP I don't have that problem and I get the data from
> > > > the remote XML but the problem is that mootools parse the result and
> > > > it gives an error as the result is XML not JSON.
>
> > > > how can I make a regular Request avoiding the preflight request? or
> > > > how can I stop JSONP from parsing the result?
>
> > > > thanks
