Site Configuration with an empty static route is possible
FormEngine aka TCEforms
The problem occurs when opening the sitemap.
(1/1) TypeError Argument 1 passed to TYPO3\CMS\Core\LinkHandling\LinkService::resolve() must be of the type string, null given, called in \public\typo3\sysext\frontend\Classes\Middleware\StaticRouteResolver.php on line 133
Steps to reproduce
- Add an Static Route in Site Configuration
- Change "Route Type" to "Page, File"
- Backend is reloaded
- Click "Close" to abort the adding of a route
As it stands, the mandatory field check is not performed by clicking on "Close".