https://nick-liu.com/tags/canonical/Recent content in Canonical on Nick Liu - Software EngineerHugo -- gohugo.ioennickboy@users.noreply.github.com (Nick Liu)nickboy@users.noreply.github.com (Nick Liu)2026 Nick LiuSat, 11 Jul 2026 15:08:00 -0700https://nick-liu.com/posts/hugo-baseurl-dual-domain-canonical/Fri, 10 Jul 2026 00:00:00 +0000nickboy@users.noreply.github.com (Nick Liu)https://nick-liu.com/posts/hugo-baseurl-dual-domain-canonical/<div class="lead text-neutral-500 dark:text-neutral-400 !mb-9 text-xl"> Paste one of my post links into a social preview and the card comes up with no image. The site itself renders fine, every page, every browser. The culprit was one character in `hugo.toml`: `baseURL = "/"`, which quietly turns every absolute URL the site emits into a relative one that only a browser can love. </div> <div class="tested-with" role="note"> <span class="tested-with-icon" aria-hidden="true">🧪</span> <span>Tested with <strong>Hugo</strong> <code>0.163.3</code> · Blowfish 2.104</span> </div> <h2 class="relative group">The symptom <div id="the-symptom" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#the-symptom" aria-label="Anchor">#</a> </span> </h2> <p>Share cards without images, that was the visible part. View source on any page and the metadata told the fuller story:</p>