title: Confusion over maxJsonLength default value
body: <p>I'm hoping to get some clarification on the maxJsonLength property.  Here is some background information.</p>
  
  <p>I was having an issue with an AJAX response not being returned in a .NET web application using jQuery.  When the user changed a drop down list, I manually built and displayed some HTML.  The issue was that one specific selection returned a string that was about 140kB but it would not display in the browser.  I narrowed the problem down to the length of the string being too long.  In searching SO and elsewhere, I found that the issue could be resolved by <a href="https://stackoverflow.com/questions/1151987/unlimited-for-maxjsonlength">manually setting the value of maxJsonLength</a> in my web.config.</p>
  
  <p>My confusion is about the default value of th maxJsonLength property.  Some answers say it's 2097152 characters and reference <a href="http://msdn.microsoft.com/en-us/library/system.web.script.serialization.javascriptserializer.maxjsonlength.aspx" rel="noreferrer">this MSDN link</a>.  But others have said the default length is 102400 and reference <a href="http://msdn.microsoft.com/en-us/library/bb763183.aspx" rel="noreferrer">this other MSDN link</a>.  In my testing, I've come to the conclusion that the default is 102400 bytes but I'm not sure of the reason for the other default value.</p>