when use require.js, window.onload not working.
when use require.js, window.onload not working.

In most cases document is ready and therefore one should call function
directly. Used in initialization of JSRootCore

linev/jsroot,linev/jsroot,bellenot/jsroot,bellenot/jsroot,asseldonk/jsroot,bellenot/jsroot,root-project/jsroot,root-project/jsroot,asseldonk/jsroot