Is getInitialProps on _app.js supposed to run on route change?

[nahtnam]

Hello,

I was under the assumption that getInitialProps runs once on the initial page load, but it seems to run every single time I change the route?

If this is the case, how do I do the following situation (psuedo code):

App.getInitialProps = () => {
  const appProps = await App.getInitialProps();
  if (isServer) {
    // do some stuff
    return { jwt, ...appProps }
  }
  return { ...appProps }
}

So when the user loads the page, it has the JWT in the ReactContext available for use, but as soon as they change routes, the JWT goes missing. How can I persist this JWT between route changes once its fetched once? If the user transitions on the client side, it should continue to hold the jwt in memory.

Any help would be greatly appreciated!