404. That’s an error.
The requested URL /bookmarks/mark?op=edit&bkmk=http%3A%2F%2Fwww.revoltlib.com%2F%3Fid%3D3161&title=Things+of+Today+%5BFeb%2C+1887%5D&annotation=Things+of+Today+%5BFeb%2C+1887%5D&labels=
was not found on this server. That’s all we know.