rem:  if ( !completed ) {  data.Stop(); 
add:  op.observer = null;   if ( started && !completed ) {  try { op.Stop(); } catch ( exception ) { if ( !dialog.error ) {  onError( exception ); } } op = null; } 
context: function onUnload() {    // Unhook observer.    data.observer = null;    // See if we completed normally (i.e., are closing ourself).    if ( !completed ) {        // Terminate transfer.        data.Stop();    }}
meta: 5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5459/5a7112f3dd04403d5e898b73570153b0714ab350/downloadProgress.js/buggy/xpfe/components/xfer/resources/downloadProgress.js