trailingSlash
By default Next.js will redirect urls with trailing slashes to their counterpart without a trailing slash. For example /about/ will redirect to /about. You can configure this behavior to act the opposite way, where urls without trailing slashes are redirected to their counterparts with trailing slashes.
Open next.config.js and add the trailingSlash config:
next.config.js
module.exports = {
  trailingSlash: true,
}With this option set, urls like /about will redirect to /about/.
When used with output: "export" configuration, the /about page will output /about/index.html (instead of the default /about.html).
Version History
| Version | Changes | 
|---|---|
| v9.5.0 | trailingSlashadded. | 
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