The original base relative path was introduced due to an erroneous test
where the URL started with three slashes: "https:///" instead of two,
which led to implementing handling for such cases but broke the two
slashes case.
This fix removes the base relative path handling because with two
slashes the path is anyway always relative to the host (aka absolute
URI, without host).
This reverts 216f62ea1468933f4a78f17885b27e37e1393d8c and part of 74b2fc7fdca9be13cbbe4cb52b2fab573b3cf82c
Signed-off-by: Vincent Petry <PVince81@yahoo.fr>