Getting "Central Directory offset not found" error using Flash WebViewer and IIS Server

[Ryan - PDFNet Developer]

I have just strated testing your viewer and the flash version of it generates some javascript error to me, while the HTML5 version work great.

I get the following error:

Central Directory offset not found
WebViewer.min.js:25

[Ryan - PDFNet Developer]

The issue is that the Flash viewer used byte-ranges when streaming is false. (same applies to the other webviewers)

This works fine in IIS for static files, but in this case the file bytes are sent from a controller action.

There is default support for byte-ranges in the controller action, so this was the problem.

After using this library:

http://tpeczek.blogspot.co.uk/2011/10/range-requests-in-aspnet-mvc.html    (there is a CodePlex link at the botton)

http://stackoverflow.com/questions/19559591/rangefilecontentresult-and-video-streaming-with-ranged-requests

everything should work fine