sometimes, url's/content simply dont show (screenshots)

That appears to be a "Twitter Says No"/"works as intended" problem.

Here's the JSON that the Twitter v1 API returns for that tweet:

{
  "created_at" : "Sun Mar 27 12:09:05 +0000 2022",
  "id" : 1508053493512298498,
  "id_str" : "1508053493512298498",
  "full_text" : "Saudi Arabian GP: Lewis Hamilton explains SHOCK qualifying exit in 'undriveable' Mercedes car 👀👇",
  "truncated" : false,
  "display_text_range" : [
    0,
    96
  ],
  "entities" : {
    "hashtags" : [],
    "symbols" : [],
    "user_mentions" : [],
    "urls" : []
  },
  "source" : "<a href=\"https://ads-api.twitter.com\" rel=\"nofollow\">Twitter for Advertisers.</a>",
  "in_reply_to_status_id" : null,
  "in_reply_to_status_id_str" : null,
  "in_reply_to_user_id" : null,
  "in_reply_to_user_id_str" : null,
  "in_reply_to_screen_name" : null,
  "user" : {
    "id" : 368276033,
    "id_str" : "368276033",
    "name" : "Sky Sports F1",
    "screen_name" : "SkySportsF1",
    "location" : "UK",
    "description" : "The official Twitter account of Sky Sports F1.",
    "url" : "https://t.co/rveTyLchrj",
    "entities" : {
      "url" : {
        "urls" : [
          {
            "url" : "https://t.co/rveTyLchrj",
            "expanded_url" : "http://www.skysports.com/f1/",
            "display_url" : "skysports.com/f1/",
            "indices" : [
              0,
              23
            ]
          }
        ]
      },
      "description" : {
        "urls" : []
      }
    },
    "protected" : false,
    "followers_count" : 1425200,
    "friends_count" : 127,
    "listed_count" : 12275,
    "created_at" : "Mon Sep 05 11:16:56 +0000 2011",
    "favourites_count" : 8651,
    "utc_offset" : null,
    "time_zone" : null,
    "geo_enabled" : true,
    "verified" : true,
    "statuses_count" : 59717,
    "lang" : null,
    "contributors_enabled" : false,
    "is_translator" : false,
    "is_translation_enabled" : false,
    "profile_background_color" : "6B6B6B",
    "profile_background_image_url" : "http://abs.twimg.com/images/themes/theme1/bg.png",
    "profile_background_image_url_https" : "https://abs.twimg.com/images/themes/theme1/bg.png",
    "profile_background_tile" : false,
    "profile_image_url" : "http://pbs.twimg.com/profile_images/1483400272248463360/VaMKOYH3_normal.jpg",
    "profile_image_url_https" : "https://pbs.twimg.com/profile_images/1483400272248463360/VaMKOYH3_normal.jpg",
    "profile_banner_url" : "https://pbs.twimg.com/profile_banners/368276033/1646131551",
    "profile_image_extensions_alt_text" : null,
    "profile_banner_extensions_alt_text" : null,
    "profile_link_color" : "B30000",
    "profile_sidebar_border_color" : "000000",
    "profile_sidebar_fill_color" : "D9D9D9",
    "profile_text_color" : "333333",
    "profile_use_background_image" : true,
    "has_extended_profile" : false,
    "default_profile" : false,
    "default_profile_image" : false,
    "following" : false,
    "follow_request_sent" : false,
    "notifications" : false,
    "translator_type" : "none",
    "withheld_in_countries" : []
  },
  "geo" : null,
  "coordinates" : null,
  "place" : null,
  "contributors" : null,
  "is_quote_status" : false,
  "retweet_count" : 33,
  "favorite_count" : 756,
  "favorited" : false,
  "retweeted" : false,
  "lang" : "en"
}

The Sky Sports link is nowhere in there. They're presumably using the Cards API or something similar. Unfortunately, if Twitter don't supply the data then we can't display it! Hopefully this will be improved in the v2 API that the rebuild of Cawbird will be using.

This is different Cawbird not showing images and summary text for other sites (like BBC News articles), which we could do if we fetched and checked the <head> tags of every linked page to see if they specified a summary and display image.

IBBoard / cawbird

sometimes, url's/content simply dont show (screenshots) #449