Error when retrieving data from remote url

Question

Hello,
I'm trying to do something that should be very simple --
letting a user enter something in a textbox, then using that data
as a script parameter when calling a remote cgi script, and
returning the results to the screen.
The remote cgi is sending data in plain text. I have looked
at several examples, and I've tried using an XMLHttpRequest, I've
tried using the servicemonitor.swf methods, and I've tried with
URLRequest and URLLoader methods. All fail in one way or another.
Here's the code for the URLRequest/URLLoader method...
function fetchISSN(myform) {
air.trace("Starting Fetch");
var mytitle = myform.title.value;
air.trace("TITLE: " + mytitle);
var reqURL = "
http://grlinker.coalliance.org/grbin/ilu_rmt.cgi";
air.trace("URL: " + reqURL);
var variables = new air.URLVariables("title=" + mytitle +
"&isf=plain");
air.trace("URLPARMS: " + variables);
// var element = document.getElementById('results');
var request = new air.URLRequest(reqURL);
air.trace("Request Object Created");
request.data = variables;
air.trace("Data Added to request");
request.method = air.URLRequestMethod.POST;
var loader = new air.URLLoader();
air.trace("Loader Object Created");
loader.addEventListener(air.Event.COMPLETE, loadComplete);
loader.addEventListener(air.Event.OPEN, loadOpen);
try {
loader.load(request);
} catch(e) {
alert('Could NOT load data: ' + e);
} // end of function fetchISSN
function loadComplete(event) {
// alert('Downloaded ' + loader.bytesTotal);
alert('Complete');
// element.innerText = loader.data;
} // end of function loadComplete()
function loadOpen(event) {
alert('Downloading');
} // end of function loadComplete()
And the HTML that calls it...
<table width="280" border="1" align="center">
<tr><td align="center">
<font size="2">Enter a title and click
submit.</font>
<form name="issn">
<input type="text" name="title" /><br>
<input type="submit" name="submit" value="Submit"
onClick="javascript:fetchISSN(this.form)" />
</form>
</td></tr>
</table>
Things go fine until it hits the loadComplete function. At
that point, the following error is generated...
Error: The application attempted to reference a JavaScript
object in an HTML page that is no longer loaded.
at __HTMLScriptFunction/throwJSObjectDead()
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at flash.net::URLLoader/onComplete()
Can anyone give me any advice or even a reason for this
failure. I did find a bug about this in the bugtracker, it says it
is resolved with an "external" resolution. I'm not sure what that
means. Is there a patch I'm missing? Am I doing something really
stupid?
Just for reference, I'm on a Mac running OS X 10.5.6, using
the SDK for development.
Thanks!
Scott

Answer 1

Hi,
Can you try putting the declaration of the URLLoader instance
outside your fetchISSN function and see?
That is:
var loader;
function fetchISSN(myform) {
//your code above this line
loader = new URLLoader();
//rest of your code