Medium embeddings are broken in some cases

[jslirola]

Bug Report

Current Behavior
I have encountered two issues related to formatting Medium links.

Error loading images
When attempting to load an image from a Medium link, a 404 error is returned. This prevents images from displaying correctly in the content.

Example of affected URL:
https://medium.com/ssense-tech/hexagonal-architecture-there-are-always-two-sides-to-every-story-bc0780ed7d9c

Problem with special characters (accents)
When a Medium URL contains special characters in Spanish, such as accents (e.g., "cómo"), the URL is not formatted correctly. The first 'ó' gets converted into encoded characters, resulting in a non-functional link.

Example of affected URL:
https://medium.com/datapath/c%C3%B3mo-usar-read-ai-transcribe-y-mejora-tus-reuniones-virtuales-93ca8cc3ba66

Expected Behavior
I expected to see a preview of the links. In the first case it is formatted but without the image, in the second nothing is shown other than the iframe without content.

Environment

• Flarum version: 1.8.1
• Extension version: 1.0.3
• Webserver: apache
• Hosting environment: shared
• PHP version: 8.2.18
• Browser: firefox 125.0.3

+-------------------------------------------+---------+------------------------------------------+
| Flarum Extensions                         |         |                                          |
+-------------------------------------------+---------+------------------------------------------+
| ID                                        | Version | Commit                                   |
+-------------------------------------------+---------+------------------------------------------+
| flarum-likes                              | v1.8.0  |                                          |
| flarum-flags                              | v1.8.0  |                                          |
| antoinefr-money                           | v1.3.1  |                                          |
| flarum-sticky                             | v1.8.0  |                                          |
| flarum-tags                               | v1.8.0  |                                          |
| flarum-markdown                           | v1.8.0  |                                          |
| flarum-suspend                            | v1.8.0  |                                          |
| flarum-lock                               | v1.8.0  |                                          |
| flarum-approval                           | v1.8.0  |                                          |
| afrux-forum-widgets-core                  | v0.1.7  |                                          |
| flamarkt-backoffice                       | 0.1.3   |                                          |
| ziiven-money-leaderboard                  | v0.1.7  |                                          |
| zerosonesfun-direct-links                 | 3.1     |                                          |
| zerosonesfun-composer-preview             | 1.2     |                                          |
| v17development-seo                        | v1.8.0  |                                          |
| the-turk-stickiest                        | 2.0.3   |                                          |
| sycho-move-posts                          | v0.1.7  |                                          |
| rob006-last-post-avatar                   | 1.2.4   |                                          |
| michaelbelgium-discussion-views           | v7.2.1  |                                          |
| matteocontrini-imgur-upload               | v3.9.1  |                                          |
| maicol07-sso                              | 1.11.5  |                                          |
| kilowhat-audit-free                       | 1.6.0   |                                          |
| justoverclock-welcomebox                  | 1.3.8   |                                          |
| justoverclock-related-discussions         | 1.3.4   |                                          |
| justoverclock-hot-discussions             | 0.1.2   |                                          |
| justoverclock-custom-html-widget          | 0.1.4   |                                          |
| fof-webhooks                              | 1.2.3   |                                          |
| fof-user-bio                              | 1.3.2   |                                          |
| fof-terms                                 | 1.2.1   |                                          |
| fof-sitemap                               | 1.0.3   |                                          |
| fof-share-social                          | 1.2.0   |                                          |
| fof-sentry                                | 1.3.2   |                                          |
| fof-recaptcha                             | 1.3.2   |                                          |
| fof-pretty-mail                           | 1.1.1   |                                          |
| fof-nightmode                             | 1.5.2   |                                          |
| fof-masquerade                            | 2.1.4   |                                          |
| fof-links                                 | 1.2.2   |                                          |
| fof-linguist                              | 1.1.1   |                                          |
| fof-forum-statistics-widget               | 1.2.1   |                                          |
| fof-formatting                            | 1.0.3   |                                          |
| fof-disposable-emails                     | 1.0.0   |                                          |
| fof-default-user-preferences              | 1.2.0   |                                          |
| fof-cookie-consent                        | 1.1.1   |                                          |
| flarum-subscriptions                      | v1.8.0  |                                          |
| flarum-statistics                         | v1.8.0  |                                          |
| flarum-mentions                           | v1.8.0  |                                          |
| flarum-lang-spanish                       | 1.8.0   |                                          |
| flarum-emoji                              | v1.8.0  |                                          |
| flarum-bbcode                             | v1.8.0  |                                          |
| davwheat-ads                              | 1.2.0   |                                          |
| datlechin-link-preview                    | v1.4.0  |                                          |
| clarkwinkelmann-post-stream-search        | 1.1.0   |                                          |
| clarkwinkelmann-post-permissions          | 1.0.0   |                                          |
| clarkwinkelmann-first-post-approval       | 1.0.1   |                                          |
| clarkwinkelmann-emojionearea              | 1.0.0   |                                          |
| clarkwinkelmann-author-change             | 1.0.3   |                                          |
| clarkwinkelmann-advanced-search-highlight | 1.0.2   | 7ced2d62976bc24f7d49c7a631534a5a1ac02913 |
| askvortsov-discussion-templates           | v0.8.3  |                                          |
| askvortsov-categories                     | v3.0.9  |                                          |
+-------------------------------------------+---------+------------------------------------------+

Additional Context

I have searched the repository for similar issues and found this link, I don't think it is caused by another extension but perhaps I am wrong.