Routing Secrets & Request Attributes > Symfony 5 Deep Dive! The HttpKernel Request-Response Flow | SymfonyCasts
Routing with an optional parameter/placeholder at the end fails if the route definition has a trailing slash · Issue #45770 · symfony/symfony · GitHub
![Bug #88291: Exception thrown if slash in route field of PersistedPatternMapper aspect - TYPO3 Core - TYPO3 Forge Bug #88291: Exception thrown if slash in route field of PersistedPatternMapper aspect - TYPO3 Core - TYPO3 Forge](https://forge.typo3.org/attachments/download/34284/exception.jpg)