The server does not support the functionality required to fulfill the request. The server either does not recognize the request method or lacks the ability to complete it.
THE iconic Levi's jean. The 501 Original Fit has been in continuous production since 1890, featuring a straight leg, button fly, and the fit that defined what 'jeans' means to the entire world.
Find on Levi's ↗The feature isn't built yet — ironic for a pair of jeans that has been fully implemented since 1890. The 501 is literally the most implemented garment in human history, while its HTTP counterpart means 'we haven't gotten around to it.' Your server is returning 501 Not Implemented, which is the developer equivalent of still wearing sweatpants because you haven't put on your 501s yet.