GET https://go.dev/blog/
body contains The Go Blog
header Content-Type == text/html; charset=utf-8

GET https://go.dev/blog/2010/08/defer-panic-and-recover.html
redirect == /blog/defer-panic-and-recover

GET https://go.dev/blog/upcoming-google-io-go-events
redirect == /blog/io2010-preview

GET https://go.dev/blog/strings
body contains produces this mess
body contains <div class="playground"
body contains <pre contenteditable="true" spellcheck="false">package main

GET https://go.dev/blog/race-detector
body contains <span class="number">11&nbsp;&nbsp;</span>    start := time.Now()

GET https://go.dev/blog/go2draft
body contains <iframe

GET https://go.dev/blog/gouk15
body contains <img

GET https://golang.org/blog/
redirect == /blog

GET https://golang.org/blog
redirect == https://go.dev/blog

GET https://go.dev/blog
redirect == /blog/

GET https://blog.golang.org/
redirect == https://go.dev/blog/

GET https://go.dev/blog/
body contains The Go Blog

GET https://blog.golang.org/x
redirect == /x/

GET https://blog.golang.org/x/
redirect == https://go.dev/blog/x/

GET https://go.dev/blog/x/
code == 404

GET https://blog.golang.org/go1.16
redirect == https://go.dev/blog/go1.16

GET https://go.dev/blog/go1.16
body contains Go 1.16

GET https://blog.golang.org/?googlecn=1
redirect == https://golang.google.cn/?googlecn=1

# Do not China-redirect go.dev links, because they will break.
GET https://go.dev/blog/?googlecn=1
body contains The Go Blog