as3 preloader stop loaded swf from caching? - actionscript-3

Question

sorry if this has been answered elsewhere but I can't find anything matching.
I have two swfs; a preloader (let's call it A) and some content (B). A loads B and adds it as a child. Everything is working beautifully (you can even see it here).
There's just one little problem I'm having. Normally when loading, say an image, into flash using the URLLoader Class, I add + "?" + new Date().getTime() to the URLRequest to force flash to load the latest version of the target, in other words to stop it using a cached version. Now, when I try to do this to the Loader that adds B to A, it can't find the URL (#2035 URL not found). So my question is: is what I'm trying to do possible, or should I take another approach to stopping B from caching?
Here's the preloader code:
package
{
import flash.display.StageAlign;
import flash.display.StageScaleMode;
import flash.display.Loader;
import flash.net.URLRequest;
import flash.events.ProgressEvent;
import flash.display.MovieClip;
import flash.events.Event;
import flash.events.ErrorEvent;
import flash.net.URLLoader;
import flash.text.TextField;
public class claude_loader extends MovieClip
{
public var main_movie:Loader = new Loader();
public var rss_loader:URLLoader;
private var perc_text:TextField = new TextField();
public function claude_loader()
{
stage.align = StageAlign.TOP_LEFT;
stage.scaleMode = StageScaleMode.NO_SCALE;
with (perc_text)
{
x = this.stage.stageWidth / 2;
y = this.stage.stageHeight / 2;
}
addChild(perc_text);
main_movie.load(new URLRequest("claudia_summers.swf"+ "?" + new Date().getTime()));
main_movie.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, load_progress);
main_movie.contentLoaderInfo.addEventListener(Event.COMPLETE,on_complete);
}
public function load_progress(e:ProgressEvent):void
{
var perc:Number = Math.round((e.bytesLoaded/e.bytesTotal)*100);
perc_text.text = "Loading " + perc + "%";
if (e.bytesLoaded == e.bytesTotal)
{
perc_text.text = "Loading done";
}
}
public function on_complete(e:Event):void
{
rss_loader = new URLLoader(new URLRequest("http://news.sulsc.org/feed"));
rss_loader.addEventListener(Event.COMPLETE,rss_complete);
perc_text.text = "Loading RSS";
}
public function rss_complete(e:Event):void
{
MovieClip(main_movie.content).rss_xml = XML(e.target.data);
addChild(main_movie);
}
}
}

Answer 1

Not sure how/why, but adding String() around new Date().getTime() and giving main_movie an IOErrorEvent listener resolves the issue. I think I have a bug somewhere, as this surely should have worked without these additions, no? Anyway thanks for all your help!
Working code:
package
{
import flash.display.StageAlign;
import flash.display.StageScaleMode;
import flash.display.Loader;
import flash.net.URLRequest;
import flash.events.ProgressEvent;
import flash.display.MovieClip;
import flash.events.Event;
import flash.events.ErrorEvent;
import flash.net.URLLoader;
import flash.text.TextField;
import flash.events.IOErrorEvent;
public class claude_loader extends MovieClip
{
public var main_movie:Loader = new Loader();
public var rss_loader:URLLoader;
private var perc_text:TextField = new TextField();
public function claude_loader()
{
stage.align = StageAlign.TOP_LEFT;
stage.scaleMode = StageScaleMode.NO_SCALE;
with (perc_text)
{
x = this.stage.stageWidth / 2;
y = this.stage.stageHeight / 2;
textColor = 0xFFFFFF;
}
addChild(perc_text);
main_movie.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR,catch_error);
main_movie.load(new URLRequest("claudia_summers.swf" + "?" + String(new Date().getTime())));
function catch_error(e:IOErrorEvent):void
{
main_movie.load(new URLRequest("claudia_summers.swf"));
perc_text.text = "Failed non-cache load"
}
main_movie.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, load_progress);
main_movie.contentLoaderInfo.addEventListener(Event.COMPLETE,on_complete);
}
public function load_progress(e:ProgressEvent):void
{
var perc:Number = Math.round((e.bytesLoaded/e.bytesTotal)*100);
perc_text.text = "Loading " + perc + "%";
if (e.bytesLoaded == e.bytesTotal)
{
perc_text.text = "Loading done";
}
}
public function on_complete(e:Event):void
{
rss_loader = new URLLoader(new URLRequest("http://news.sulsc.org/feed"));
rss_loader.addEventListener(Event.COMPLETE,rss_complete);
perc_text.text = "Loading RSS";
}
public function rss_complete(e:Event):void
{
MovieClip(main_movie.content).rss_xml = XML(e.target.data);
addChild(main_movie);
}
}
}