Cannot GET /delete/532fa5e56f885c7fec5223b1fds

如何成功删除文档？

app.js

//Delete 
app.del('/delete/:id',routes.delete_offer);

路线/ index.js

//Delete
    exports.delete_offer = function (req,res){
      Offer.findOneAndRemove({'_id' : req.params.id},function (err,offer){
        res.redirect('/newsFeed');
      });
    };

意见/ dashboard.jade

- each offer in offers
            div.offer.row
                a(href="/offer/" + offer._id)
                    div.columns
                        div.sell_type
                            p=offer.type
                    div.small-8.columns.sell_info
                        p.sell_price="$" + offer.fixedPrice() + " "
                        p.sell_location="@ " + offer.location + " ›"
                    div.small-4.columns.sell_pic
                        p=offer.user_id
                a.delete(href="/delete/" + offer._id)="Delete Offer"