the route with no action but with a closing slash

[mgrechanik]

No additional url management was made.

When I call the page like this:

site.com/?r=learn/

it could not understand that the action is default. It says that the page is not found. Did you intend this behavior?
Because in the yii1 it works in a different way ( because of trim($route,'/')) .

[egorpromo]

I think it is needed to take into consideration a URL Canonicalization. For seo the URL with trailing slash and URL without trailing slash are different URLs. It is said by Matt Cutts - employee of Google SEO team. You can read what he says about trailing slashes here. Also take in consideration traling slashes for Pretty URLs (Permanent URLs). I think Yii must open URLs with trailing and without trailing slash but Canonical URL must be without trailing slash.

[mgrechanik]

@egorpromo, I have just checked that Controller::getCanonicalUrl() for the route like 'learn/' or 'learn' will return 'learn/index'

[egorpromo]

@mgrechanik I have checked it now and I see it is ok for seo :)