chuckhoupt

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W3 unconditionally redirects to HTTPS, breaking software

3 pointsby chuckhouptvor 4 Jahren0 comments

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vor 9 Monatendiscuss

The classical answer is that the S stands for Server-Side-Incude (SSI). SSI source typically uses the extension .shtml. More info:

https://en.wikipedia.org/wiki/Server_Side_Includes

chuckhoupt

vor 4 Jahrendiscuss

Ah, but it's (roughly) 88x31 CSS Pixels!

chuckhoupt

vor 4 Jahrendiscuss

Just last week I updated one of those for Retina/HDPI:

https://houptlab.org/img/made-on-a-mac-20221117.png

chuckhoupt

vor 4 Jahrendiscuss

Thanks [I'm the author]. I tested with Chrome 105 on macOS and it succeeded. Possibly there are OS/plugin/etc issues?

Of course, I know there is no guarantee that every browsers innerHTML implementation will produce exactly the same result, but so far I haven't found any variation (Chrome, FF, Safari, Edge).

chuckhoupt

vor 5 Jahrendiscuss

I think this was a bug in the site, which appears to now been fixed.

chuckhoupt

vor 5 Jahrendiscuss

Note that HTTP is also upgraded if the UA requests it with the Upgrade-Insecure-Requests header:

  $ curl -I -H 'Upgrade-Insecure-Requests: 1' 'http://www.w3.org/Provider/Style/URI.html'
  HTTP/1.1 307 Temporary Redirect
  location: https://www.w3.org/Provider/Style/URI.html
  vary: Upgrade-Insecure-Requests