Improve redirected and broken links

[noelleleigh]

• changelog.html: Fixed invalid URL scheme in link to book.
• index.html: Replace W3.org link with the equivalent official WHATWG standard page.
• index.html: Added trailing slash to avoid a redirect in book link.

[davetron5000]

Thanks! I'm curious about the trailing slashes. I don't get a redirect when omitting them in my browser, nor in curl:

> curl -v https://devbox.computer > /dev/null
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0* Host devbox.computer:443 was resolved.
* IPv6: (none)
* IPv4: 185.199.111.153, 185.199.110.153, 185.199.108.153, 185.199.109.153
*   Trying 185.199.111.153:443...
* Connected to devbox.computer (185.199.111.153) port 443
* ALPN: curl offers h2,http/1.1
* (304) (OUT), TLS handshake, Client hello (1):
} [320 bytes data]
*  CAfile: /etc/ssl/cert.pem
*  CApath: none
* (304) (IN), TLS handshake, Server hello (2):
{ [122 bytes data]
* (304) (IN), TLS handshake, Unknown (8):
{ [19 bytes data]
* (304) (IN), TLS handshake, Certificate (11):
{ [2625 bytes data]
* (304) (IN), TLS handshake, CERT verify (15):
{ [264 bytes data]
* (304) (IN), TLS handshake, Finished (20):
{ [36 bytes data]
* (304) (OUT), TLS handshake, Finished (20):
} [36 bytes data]
* SSL connection using TLSv1.3 / AEAD-CHACHA20-POLY1305-SHA256 / [blank] / UNDEF
* ALPN: server accepted h2
* Server certificate:
*  subject: CN=devbox.computer
*  start date: Apr 27 10:50:39 2025 GMT
*  expire date: Jul 26 10:50:38 2025 GMT
*  subjectAltName: host "devbox.computer" matched cert's "devbox.computer"
*  issuer: C=US; O=Let's Encrypt; CN=R11
*  SSL certificate verify ok.
* using HTTP/2
* [HTTP/2] [1] OPENED stream for https://devbox.computer/
* [HTTP/2] [1] [:method: GET]
* [HTTP/2] [1] [:scheme: https]
* [HTTP/2] [1] [:authority: devbox.computer]
* [HTTP/2] [1] [:path: /]
* [HTTP/2] [1] [user-agent: curl/8.7.1]
* [HTTP/2] [1] [accept: */*]
> GET / HTTP/2
> Host: devbox.computer
> User-Agent: curl/8.7.1
> Accept: */*
> 
* Request completely sent off
< HTTP/2 200 
< server: GitHub.com
< content-type: text/html; charset=utf-8
< last-modified: Wed, 10 Apr 2024 17:44:45 GMT
< access-control-allow-origin: *
< etag: "6616d00d-4dc8"
< expires: Sat, 31 May 2025 11:45:42 GMT
< cache-control: max-age=600
< x-proxy-cache: MISS
< x-github-request-id: DB88:793B7:16F7447:1881071:683AE98E
< accept-ranges: bytes
< age: 0
< date: Sat, 31 May 2025 11:35:42 GMT
< via: 1.1 varnish
< x-served-by: cache-iad-kiad7000146-IAD
< x-cache: MISS
< x-cache-hits: 0
< x-timer: S1748691343.839150,VS0,VE12
< vary: Accept-Encoding
< x-fastly-request-id: 32226d5fc3844a590bfa1b7bccc03c7b3b1a4c0b
< content-length: 19912
< 

[noelleleigh]

Thanks! I'm curious about the trailing slashes. I don't get a redirect when omitting them in my browser, nor in curl:

Ah, you're right. My browser was doing it, but I should've just stuck with what LinkChecker told me.

[davetron5000]

This is now live - thanks again for the fix!