An unknown error occurred while rendering the page

I encountered some 5xx errors while using pkg-pr-new from time to time. Since it's 5xx errors, I believe it would be great for the Stackblitz team to check the Cloudflare log and determine the cause.

I list some examples with the following HTML output:

• https://github.com/prosekit/prosekit/actions/runs/19808419258/job/56746479265?pr=1357
• https://github.com/rolldown/tsdown/actions/runs/19808318008/job/56746075380?pr=622

<p>
You've requested a page on a website (pkg.pr.new) that is on the 
<a href="https://www.cloudflare.com/5xx-error-landing?utm_source=error_100x" target="_blank">
Cloudflare</a> network. An unknown error occurred while rendering the page.
</p>

<p>
<strong>If you are the owner of this website:</strong>
<br />
refer to 
<a href="https://developers.cloudflare.com/workers/observability/errors/" target="_blank">
Workers - Errors and Exceptions</a> and check Workers Logs for pkg.pr.new.
</p>

No repository file or test is named. Start with the two linked GitHub Actions runs and the Cloudflare Workers Logs referenced in the report; compare their timestamps and request details. Done means identifying the source of the intermittent 5xx rendering errors and recording or implementing a confirmed fix.