This PR fixes https://github.com/vercel/next.js/issues/4883.
It introduces a new global variable (`window.__REHYDRATE_IDS`) only when necessary.
In the case of the `with-react-with-styles` example, rehydration isn't happening, so I removed the creation of the variable.
In the case of the `with-react-intl` example, the information doesn't seem to be set anymore on `__NEXT_DATA__`, so I just removed the default reference to it.
Per https://github.com/zeit/next.js/issues/12964
* with-ant-design
* with-dynamic-import
* with-iron-session
* with-monaco-editor
* with-next-page-transitions
* with-react-with-styles
* with-style-sheet
* with-why-did-you-render
Tested each example, working as intended, no additional issues presented
Currently failing because `withStyles` can't read the interface from context:
```
Unhandled Runtime Error
TypeError: Cannot read property 'createLTR' of undefined
webpack-internal:///./node_modules/react-with-styles/lib/withStyles.js (150:33)
```
Manually registering the interface resolves the issue:
```diff
diff --git a/examples/with-react-with-styles/pages/_app.js b/examples/with-react-with-styles/pages/_app.js
index 91d09a2a9..a393572b8 100644
--- a/examples/with-react-with-styles/pages/_app.js
+++ b/examples/with-react-with-styles/pages/_app.js
@@ -2,11 +2,16 @@ import App from 'next/app'
import React from 'react'
import WithStylesContext from 'react-with-styles/lib/WithStylesContext'
import AphroditeInterface from 'react-with-styles-interface-aphrodite'
+import ThemedStyleSheet from 'react-with-styles/lib/ThemedStyleSheet'
import defaultTheme from '../defaultTheme'
class MyApp extends App {
+ constructor(props) {
+ super(props);
+ ThemedStyleSheet.registerInterface(AphroditeInterface)
+ }
render() {
const { Component, pageProps } = this.props
```
But that's not how it is documented. I'm following up with react-with-styles to see if this is a bug.
