Tenor in particular is shitty like that too. If I directly link to a tenor gif on discord, people have to click the link and open a webpage to view the gif. To embed it in discord I have to save it and upload it.

  "code": "validate-width",
  "msg": "Too wide"
}```

stripped the headers, your image didn't make it through the infosec.pub proxy. 

X-Firefox-Spdy: h2 access-control-expose-headers: vary, date, content-length, content-encoding, content-type cache-control: public, max-age=60 content-encoding: br content-type: application/json date: Fri, 27 Feb 2026 02:10:57 GMT server: nginx vary: accept-encoding, Origin, Access-Control-Request-Method, Access-Control-Request-Headers

Accept: text/html,application/xhtml+xml,application/xml;q=0.9,/;q=0.8 Accept-Encoding: gzip, deflate, br, zstd Accept-Language: en-US,en;q=0.5 Connection: keep-alive DNT: 1 Host: infosec.pub Priority: u=0, i Referer: https://piefed.social/ Sec-Fetch-Dest: document Sec-Fetch-Mode: navigate Sec-Fetch-Site: cross-site Sec-Fetch-User: ?1 Sec-GPC: 1 TE: trailers Upgrade-Insecure-Requests: 1 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:140.0) Gecko/20100101 Firefox/140.0