Twitter incompatibility

[Saint Michael]

Fixed, many thanks. I had asked ChatGPT 4o and it could not help.

On Sun, May 19, 2024 at 6:28 PM J Carter <jordanc.carter at outlook.com> wrote:
>
> Hello,
>
> On Sun, 19 May 2024 16:47:02 -0400
> Saint Michael <venefax at gmail.com> wrote:
>
> > I need some help with a Nginx,. Twitter problem
> > please open a twitter client x.com
> > and post this link
> > https://patrician.org/22a51cfb-7d5b-4a97-a687-a10cd1946766/
> > and then open a new client and post
> > https://xlong.org/p/a3622727-4df1-46f3-aee8-ee0a43194906/
> >
> > in the first case, it's an Apache server, and X pulls the twitter card just fine
> > in the second, it fails, it posts the link as is, very ugly, no image
> > both link works, but only Apache allows twitter to work as intended,
> > pulling image called "twitter:card"
>
> When accessing the new page's twitter:image target image directly I see
> the following:
>
> curl http://ssnode1.minixel.com/p/papel-literario-2.jpg -i
> HTTP/1.1 200 OK
> Server: openresty
> Date: Sun, 19 May 2024 22:07:18 GMT
> Content-Type: image/jpeg
> Content-Length: 93273
> Last-Modified: Mon, 29 Apr 2024 23:52:26 GMT
> Connection: keep-alive
> ETag: "663032ba-16c59"
> Cache-Control:
> no-cache,: no-store, must-revalidate
> Access-Control-Allow-Origin: *
> Pragma: no-cache
> Accept-Ranges: bytes
> ...
>
> A) Cache Control header appears to be malformed, notice it's contents
> are in it's own header, and Cache-Control is empty.
>
> B) Twitter actually caches and serves preview image, they do not link
> directly to image on your site - perhaps just try removing
> Cache-Control header and Pragma: no-cache altogether.
>
> Old version has neither of these issues (see below).
>
> curl -i http://patrician.org/papel-literario-2.jpg -L
> HTTP/1.1 301 Moved Permanently
> Date: Sun, 19 May 2024 22:11:29 GMT
> Server: Apache/2.4.37 (CentOS Stream) OpenSSL/1.1.1k
> Location: https://patrician.org/papel-literario-2.jpg
> Content-Length: 251
> Content-Type: text/html; charset=iso-8859-1
>
> HTTP/1.1 200 OK
> Date: Sun, 19 May 2024 22:11:29 GMT
> Server: Apache/2.4.37 (CentOS Stream) OpenSSL/1.1.1k
> Last-Modified: Sun, 19 May 2024 16:15:57 GMT
> ETag: "16c59-618d0e65ae1e3"
> Accept-Ranges: bytes
> Content-Length: 93273
> Content-Type: image/jpeg
> ...
>
> Old version does also do http->https redirect, although I wouldn't
> think lack of that would cause an issue.
>
> Just as an aside you can use twitter card validator here[1] to validate
> cards - xlong.org domain's version of page currently shows
> "internal server error" for me, old domain passes checks.
>
> [1] https://cards-dev.twitter.com/validator
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