silverpill@Profpatsch You need to create a new signature because the request target is changing. It is a part of a signature base, so the initial signature becomes invalid when the client follows a redirect.
GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.
All GNU social JP content and data are available under the Creative Commons Attribution 3.0 license.