[Bug]: parsing 429 responses as valid, causing broken preview and summary

[lullis]

Requirements

• Is this a bug report? For questions or discussions use https://lemmy.ml/c/lemmy_support
• Did you check to see if this issue already exists?
• Is this only a single bug? Do not put multiple bugs in one issue.
• Do you agree to follow the rules in our Code of Conduct?
• Is this a backend issue? Use the lemmy-ui repo for UI / frontend issues.

Summary

Every post that I create with a link to www.cbssports.com (e.g, https://communick.news/post/1810146) is being generated with a "429 Too Many Requests" preview.

Steps to Reproduce

1. (Might be required to use an instance hosted in Europe): post a link to any article from cbssports.com
   2.See the "429 Too Many Requests" as suggested title

Technical Details

Maybe it would be better to reject submissions or discard previews if the response is 4** code?

Version

0.19.5

Lemmy Instance URL

https://communick.news