title: Significance of bool IsReusable in http handler interface
body: <p>When writing a http handler/module, there is an interface member to implement called - <a href="https://docs.microsoft.com/en-us/dotnet/api/system.web.ihttphandler.isreusable" rel="noreferrer">bool IsReusable</a>.</p>
  
  <p>What is the significance of this member? If I set it to false (or true), what does this mean for the rest of the web app?</p>