anchor.diff:  
   In an **app**, 502 errors can occur in the following ways:
   
  -<p class='note'><strong>Note:</strong> Gorouter does retry any error response returned by the app.</p>
  +<p class='note'><strong>Note:</strong> Gorouter does not retry any error response returned by the app.</p>
   
   - If 502 errors only occur from one or more particular app instances and not all of the apps on the platform, it is likely an app-related error. The app might be overloaded, unresponsive, or unable to connect to the database.
   - If all apps are experiencing 502 errors, then it could either be a platform issue, such as a possible misconfiguration, or an app issue, such as all apps being unable to connect to an upstream database.
  
positive.code: 1. Infrastructure
      - Load balancer
      - Network
  1. Platform - <%= vars.platform_name %>
      - Gorouter
      - Diego Cells
  1. App
  
negative.code: owner: Routing
  ---
  
  This topic helps operators to better understand if 502 errors are a result of their infrastructure, <%= vars.app_runtime_full %> (<%= vars.app_runtime_abbr %>), or an app.
  
  
  ## <a id="points-of-failure"></a> Points of Failure
  