title: How to read Power Query -> Web.Contents response header?
body: <pre><code>let
      url = "http://XXXX/Account/Login",
      body = "{""UserName"": ""test""}",
      Source = Json.Document(Web.Contents(url,[          
       Headers = [#"Content-Type"="application/json"],
       Content = Text.ToBinary(body) 
      ]))
  in
      Source
  </code></pre>
  
  <p>How to read the Header value from Source? </p>