React 16: Warning: Expected server HTML to contain a matching <div> in <div> due to State
This will solve the issue.
// Fix: Expected server HTML to contain a matching <a> in
const renderMethod = module.hot ? ReactDOM.render : ReactDOM.hydrate;
renderMethod(
<BrowserRouter>
<RoutersController data={data} routes={routes} />
</BrowserRouter>,
document.getElementById('root')
);
Gatsby
A recent feature flag of gatsby (introduced in v2.28, December 2020) ables to server-side render pages in dev environment.
This flag is set to true
by default. In this case, you might see this error message in the console :
Warning: Expected server HTML to contain a matching <div> in <div>.
You can disable this flag in gatsby.config.js
file :
module.exports = {
flags: {
DEV_SSR: false,
}
}
doc : https://www.gatsbyjs.com/docs/reference/release-notes/v2.28/#feature-flags-in-gatsby-configjs
The current accepted answer doesn’t play well with TypeScript. Here is what works for me.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<link rel="shortcut icon" href="/favicon.ico" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
</head>
<body>
<noscript>
You need to enable JavaScript to run this app.
</noscript>
<div id="root"></div>
</body>
</html>
import React from "react"
import { hydrate, render } from "react-dom"
import BrowserRouter from "./routers/Browser"
const root = document.getElementById("root")
var renderMethod
if (root && root.innerHTML !== "") {
renderMethod = hydrate
} else {
renderMethod = render
}
renderMethod(<BrowserRouter />, document.getElementById("root"))