Most of the url (including the path pieces) is supposed to be case sensitive unless otherwise specified for a given protocol (and treating e.g. %3A the same as

Most of the url (including the path pieces) is supposed to be case sensitive unless otherwise specified for a given protocol (and treating e.g. %3A the same as %3a). This should be the most recent RFC on the topic: https://tools.ietf.org/html/rfc3986#section-6.2.2.1 https://tools.ietf.org/html/rfc3986#section-6.2.2.1