It's an elegant package that uses some Meteor internal API for SSR from the WebApp and WebAppInternals.getBoilerplate API. Unfortunately it no longer works with newer Meteor versions.

Meteor 1.6.1 changed the return value from WebAppInternals.getBoilerplate from String to Stream. Line 67 in server/steps/applicationRendering.jsx now causes an error.

Also I get this error: TypeError: Cannot read property 'toComponent' of undefined caused by line 62 in the same file. I couldn't find a solution for either, so I am posting it here.

Here is the Meteor commit that changed from String to Stream:meteor/meteor@991fb5e#diff-79c5e18978e1bfa64cbb9edb380f2920