Comment 1 for bug 1692347

Hm. Well, we can deduplicate the slashes (one is from the trailing slash in your mirror URL, one is from a hardcoded '%s/%s' string, and one is from the start of the path field in http://releases.ubuntu.com/.manifest), but are you sure that's really what's causing the failure? Both those URLs return 200 for me, and in general extra slashes shouldn't be a problem.