How do I have to change this XML string so that XDocument.Parse reads it in?

Question

In the following code, I serialize an object into an XML string.

But when I try to read this XML string into an XDocument

Answer 1

It's because the data contains the unicode or utf8 BOM marks at the start of the stream.

You need to skip past any Byte Order Marks in the stream - you can identify these from the System.Text.Encoding.GetPreamble() method.