Incorrect routing on duplicate slashes

[hundblue]

URL pathnames prefixed by duplicate slashes ('//', '///', ...) are incorrectly interpreted as absolute URLs. At present, the URL https://learn.getgrav.org//__FAKE_HOSTNAME__/content/routing
is resolved to
https://learn.getgrav.org/content/routing
This is caused by the $bits = parse_url($uri); asignment in Uri.php.

[Perlkonig]

The word "incorrectly" implies that there's a "correct" way to interpret those slashes. But if you look at the relevant RFCs, I can find no prescribed normalization of such slashes. Did I miss something?

So URI paths containing such are simply invalid, and the result of running such a URL through various tools is undefined. parse_url is a built-in PHP function. Grav can't do anything about it, short of rolling its own.

[mahagr]

URL starting with // is shorthand for the current protocol which is either http:// or https://.

That said the behaviour you observed in the learn site is wrong, it should end up to 404 page.

[mahagr]

Confirmed this to be a bug in Grav\Common\Uri class. The issue isn't present on other libraries.