Does flash.display.Loader determine the file by filename or header?

Does flash.display.Loader determine the file by filename or header?

The reason why I ask is that I'm getting an IOError: "Unknown File Type" when loading an swf which has a strange filename (in the form of "file开发者_运维百科name.randomnumbersandletters.swf").

Thanks!

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Probably you need to encode (escape(file_path)) the swf file url as it might contain some special character. And flash loader determines the file type by header instead of filename.