Flash TextField HTML - 如何防止错误对话丢失图像？ （错误＃2044：未处理的IOErrorEvent：。text =错误＃2035：找不到URL）

I'm using a Flash TextField control to display some HTML content inside a Flash presentation to be shown on a large touch-screen kiosk. Unfortunately, if any image tag in the displayed HTML content points to a non-existent image, a dialogue is shown with the error message I'm using a Flash TextField control to display