Handling Security Errors in AS3

I am using an imported class for a vimeo player in AS3, it is the official vimeo player api (vimeo.com). I want to handle any Security Errors that an instance of the class throws (they get 开发者_运维问答thrown when the obect fails to load an external URL for a video). This is what I have got:

    var clipPlayer = new VimeoPlayer("5d22d3942a54d7c75b931bab4a911857", videoID[clickedClip], fullVideoWidth, fullVideoHeight, "10", 2);
    clipPlayer.addEventListener(SecurityErrorEvent.SECURITY_ERROR , vimeoError);

Later in the code ofcourse, I've got the function that handles the event:

    function vimeoError (e : SecurityErrorEvent) : void {
        trace("vimeo player failed to load");
    }

This all seems straight forward, but yet the Error Handler is not firing. I must be missing something here... Maybe you can't register this kind of event listener on a VimeoPlayer object. However, I am pretty certain it is the VimeoPlayer object throwing them. Here is an example of what I am getting:

Error opening URL 
'http://api.vimeo.com/moogaloop_api.swf?oauth_key=5d22d3942a54d7c75b931bab4a911857&clip_id=21185860&width=500&height=281&fullscreen=0&fp_version=10&api=1&cache_buster=565.7249609939754'
SecurityError: Error #2000: No active security context.

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Dispatched error events are separate from thrown Errors. In many cases both kinds can occur, and then you need to listen for the former and catch the latter with a try statement around the code that may throw. The error you quote seems to be of the thrown variety (as events typically stringize to something involving square brackets).