getInitialProps is being called client side with Automatic Static Optimization disabled

[dijs]

Bug report

Describe the bug

When a user navigates back/forward in history, getInitialProps is being called on the client-side which throws an error.

Unless I am misunderstanding something, this should never be called when Automatic Static Optimization is disabled, since all pages should be server side rendered.

To Reproduce

Steps to reproduce the behavior, please provide code snippets or a repository:

1. Disable Automatic Static Optimization
2. Load page with getInitialProps
3. Navigate away and back
4. See error

Expected behavior

Should not call getInitialProps client side

System information

• Version of Next.js: 9.2.1

[lfades]

getInitialProps is called in the browser for client-side navigations with Link and next/router; and in the server for the first render, so such behavior is expected.

You may want to check for getServerProps, currently experimental: #9524 - but it will be released very soon.

[balazsorban44]

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