Previously to change the page header from authentication module, there is 2 ways to change them
Method 1 : Edit xml file
E.g: Edit DataStore.xml to change the header:
Method 2 : Using substituteHeader(state, header) method to change page header
However, current authentication node does not have an API method that provide similar functionality of substituteHeader() to customize the page header. Hence, it would be good to have a method to change the page header for authentication node.