In master page
<% if (HttpContext.Current.IsDebuggingEnabled) { %>
<meta name="debug" content="true" />
<% } %>
In javascript
//EVENT Error
error: function (result) {
HideProgress();
if ($("meta[name=debug]").attr("content") == "true") {
//Full Error when debugging
var errDoc = window.open();
errDoc.document.write(result.responseText);
errDoc.document.close();
} else {
// generic error message for production use
Message("An unexpected error occurred.", "Error");
}
}
