Sort CommonPrefixes lexicographically to match AWS S3 behavior

weed/s3api/s3api_object_handlers_list.go

@@ -355,6 +355,10 @@ func (s3a *S3ApiServer) listFilerEntries(bucket string, originalPrefix string, m
 	sort.Slice(response.CommonPrefixes, func(i, j int) bool { return response.CommonPrefixes[i].Prefix < response.CommonPrefixes[j].Prefix })
 	if encodingTypeUrl {
 		response.EncodingType = s3.EncodingTypeUrl
+		// URL-encode all common prefixes when EncodingType=url
+		for i := range response.CommonPrefixes {
+			response.CommonPrefixes[i].Prefix = urlPathEscape(response.CommonPrefixes[i].Prefix)
+		}
 	}
 	return nil
 	})