Append trailing slash on all URLs

[sfusato]

@josevalim said some days ago that “Phoenix ignores the trailing slash when matching…”:

Phoenix Route redirecting from /users to /users/

Phoenix ignores the trailing slash when matching but it should not remove them when generating a route. So if you do something like redirect conn, to: "/users/", then it should work.

If you match with trailing slash in the router file, it would be useful for the helper functions to return with trailing slashes as well. I have no idea if there’s some technical detail that doesn’t easily allow for this.

trailing slash vs non-trailing slash is like the www vs non-www discussion