Adobe AIR 4 Not reading a XML file larger than 10MB

Question

I have an application where the XML file could be over 10MB in size. I am using XMLHttpRequest to read the file in. However, on Air 4, it results in null when the file is greater than 10MB in size. This was working until I updated to AIR 4. I can go back to a previous version of AIR and the loading of large file works.
xml = new XMLHttpRequest( );
xml.onreadystatechange = function( ){
    if( xml.readyState == 4 && xml.status == 200){
  b[language] = xml.responseXML.documentElement; //Results in NULL when file size is greater than 10MB
        var tempTxt = "Loaded Database";
xml.open( "GET", file.url, false);
xml.send( null );
Why AIR limited the file size and any work around for this? The Request processes fine and readyState will become 4. However, xml.responseXML.documentElement will respond with a NULL.
Thank you
Binu
www.verseview.info

Answer 1

It's difficult to tell what it is, it looks like a binary
pipe symbol but I can copy it from TextPad for example. Some of the
characters following it cannot be copied from TextPad which I
assume is because it's null. I can read the whole file in C#/.Net
and assign it to a string variable without any problems but perhaps
Air is somewhat limited to binary content.