The example vendor.js is 590Kb how can we make it smaller?

I tried to use you helper splitVendor() to try to split the vendor js (590Kb) into many chunks but I did not succeed.
I think the exemple should include this natively (who wants do download 590Kb of js at ones).

I would like to extract vendors: react, redux, and other big ones.
I am interested in the redux-ssr branch so there is no js at all that is run on client side when you connect to the website the first time which mean having a lot of chunk and taking advantage of http2 would be a very good thing.

Can you help me with that?

Inspect the example vendor.js and the splitVendor() helper to understand how the current vendor bundle is produced, then compare the redux-ssr branch. Done should mean that React, Redux, and other large vendors are emitted as separate chunks so the initial client load no longer downloads the full 590 KB bundle.

Written by the indexing model from the issue text.