why there are two duplicate metadata requests

Created by Jerry Wang, last modified on Mar 03, 2015

• ODataModel
  
  Actually they are not duplicated:

1. the first one has accept type as xml, while the second one pure text.
2. the prefix of the two are different: /sap and /1sap.
   First request:
   Trigger point: main view constructor is called:
   
   sap.ca.scfld.md.Startup.init is called in our application code:
   
   ConnectionManager.getNewInstance is called with configuration data maintained in file Configuration.js:

OData model instance is created based on this relative url:

first request is sent out with relative url:

second request:

The application code is triggering the second request sent:

The configuration comes from component metadata: