css - How to create a 404 page

Question

How to do 404 page and under what circumstances jump to 404 page

Answer 1

How to implement

koa

app.use(async ctx => {
    ctx.status = 404;
    ctx.body = await readSmallFile('./404.html');
});

Answer 2

Status code 404 means NOT FOUND, probably

• The address link is wrong;

• The corresponding page cannot be found on the server;

Generally, you can design a separate page for 404; 404 not found is just a friendly reminder to the user that the page cannot be accessed.