title: Youtube browser upload with flash (Security error #2049)
body: <p>I'am trying to upload video to Youtube with flash from browser. Usual HTML form created with <a href="https://developers.google.com/youtube/1.0/developers_guide_python#UploadingVideos" rel="nofollow">official API</a> works fine, but I need progress bar.</p>
  
  <p>I'm trying to use SWFUpload, Uploadify and Yahoo UI, but all uploaders throws Security Error #2049. I guess this means crossdomain.xml file rejects my request, right?</p>
  
  <p>Youtube's crossdomain.xml located in <a href="https://uploads.gdata.youtube.com/crossdomain.xml" rel="nofollow">https://uploads.gdata.youtube.com/crossdomain.xml</a>. I can see this request in browser when trying to upload. I've tested both localhost and App Engine -- same error is occured.</p>
  
  <p>Could you give me a tips? Tnanks.</p>