[Routing] Trailing Slash article should be changed for 4.1

[vudaltsov]

It looks like since 4.1 and symfony/symfony#26283 article https://symfony.com/doc/current/routing/redirect_trailing_slash.html is no longer needed.

Besides implementing such a controller in 4.1 will cause infinite redirect from no trailing slash to trailing slash and back for non matching urls.

[javiereguiluz]

You are right! However, this change is already done. In 4.1 this article no longer exists: https://symfony.com/doc/4.1/routing/redirect_trailing_slash.html Closing then as fixed. Thanks!

[xabbuh]

For the records, the changes was made in #9385.

[vudaltsov]

I think it would be nice to attract community's attention to this somehow. Recently I updated one of my projects to 4.1 beta for test and for about an hour couldn't understand why I had infinite redirects on favicon.ico (which didn't exist).

Only after thorough analysis I realized I had to remove my redirect controller from routes.yaml.