Hey @agilius :) checking if process exists gives us the same true/false indication as when checking if window exist since niether exist on both client and server. Also - this check needs to be done at run-time and not at compile-time so therefore cannot be used within the webpack config. checking the env in webpack is relevant since you may want to pack your app differently for dev use or production use, however in the case I was referring to the component needs to check where it is being rendered since in isomorphic (universal) apps the react redux code may be rendered on both server and client so I needed to avoid a dependency on window if it is being rendered on the server... hope this make sense. in any case this problem is solved for my needs :)

@Ajar, why do you want to execute this check at run-time? Is there any benefit to having the if statement in the code at run time in order to check something like this?