Our Discourse is unable to generate preview for our domain, even as I’ve made sure that our OpenGraph tags are valid and in fact shows up in iframely as recommended by some other posts in this forum. URL: https://royaleapi.com/player/QVPJRV iframely: [画像] Iframely URL Debugger - Open Gr…

Your site is returning error HTTP 503 for HEAD requests. You must fix that. ➜ ~ curl https://royaleapi.com/player/QVPJRV -I HTTP/2 503 date: Mon, 11 Jan 2021 16:02:46 GMT content-type: text/html; charset=utf-8 set-cookie: __cfduid=da03fb9dd5542a32b6480f771b47625421610380966; expires=Wed, 10-Feb-2…

I see. Yes, I’ve disabled HEAD requests on the site. I’ll try to re-enable it — though I’m not sure why preview requires head requests to operate?

@Falco I have fixed the issue, so now the previews do get displayed. However, anything that was previously deemed “unpreviewable” doesn’t seem to show up anymore. It appears that Discourse has saved URLs that it cannot fetch with HEAD previously in some type of cache (this is just me guessing). Wh…

I just did a rebuild of the post in the OP here and it was enough. So Rebake all posts matching a pattern should help you.

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Falco (Falco) 2021 年 1 月 14 日午前 12:08 5

OPの投稿を再構築しただけで十分でした。

したがって、パターンに一致するすべての投稿を再構築する機能が役立つはずです。

トピック		返信	表示
Why Do Some Blog Posts in Discourse Have A Preview? Support	7	2366	2019 年 10 月 22 日
JavaScript embed won’t display embed, console log shows: Failed to execute postMessage on DOMWindow… Support	19	5927	2022 年 4 月 26 日
Link preview HTTP GET breaks spec Bug	13	1557	2025 年 10 月 30 日
Onebox previews are not working for my site Support onebox	4	277	2024 年 2 月 23 日
Missing preview for Artstation links Support	21	1366	2023 年 8 月 24 日

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