We basically mock the way `URLGenerator::getAbsoluteURL` works,
so we must make sure that the URL might already contain the webroot.
Because `baseURL` and `cliURL` also contain the webroot we need to remove
the webroot from the URL first.
Co-authored-by: Ferdinand Thiessen <opensource@fthiessen.de>
Co-authored-by: Daniel <mail@danielkesselberg.de>
Signed-off-by: Ferdinand Thiessen <opensource@fthiessen.de>