From 338e5c82e19f2b98cc3b2632a438bc014aa18672 Mon Sep 17 00:00:00 2001
From: taskylizard <75871323+taskylizard@users.noreply.github.com>
Date: Tue, 27 Jan 2026 19:03:12 +0100
Subject: [PATCH] fix(api/readme): resolve srcset URLs in <source> elements

Fixes #161.
---
 server/api/registry/readme/[...pkg].get.ts |  2 +-
 server/utils/readme.ts                     | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/server/api/registry/readme/[...pkg].get.ts b/server/api/registry/readme/[...pkg].get.ts
index 8f455e7989..b892b93ad7 100644
--- a/server/api/registry/readme/[...pkg].get.ts
+++ b/server/api/registry/readme/[...pkg].get.ts
@@ -126,7 +126,7 @@ export default defineCachedEventHandler(
     swr: true,
     getKey: event => {
       const pkg = getRouterParam(event, 'pkg') ?? ''
-      return `readme:v4:${pkg.replace(/\/+$/, '').trim()}`
+      return `readme:v5:${pkg.replace(/\/+$/, '').trim()}`
     },
   },
 )
diff --git a/server/utils/readme.ts b/server/utils/readme.ts
index 1a97a5e93d..0d70491de5 100644
--- a/server/utils/readme.ts
+++ b/server/utils/readme.ts
@@ -354,6 +354,25 @@ export async function renderReadmeHtml(
         }
         return { tagName, attribs }
       },
+      source: (tagName, attribs) => {
+        if (attribs.src) {
+          attribs.src = resolveImageUrl(attribs.src, packageName, repoInfo)
+        }
+        if (attribs.srcset) {
+          attribs.srcset = attribs.srcset
+            .split(',')
+            .map(entry => {
+              const parts = entry.trim().split(/\s+/)
+              const url = parts[0]
+              if (!url) return entry.trim()
+              const descriptor = parts[1]
+              const resolvedUrl = resolveImageUrl(url, packageName, repoInfo)
+              return descriptor ? `${resolvedUrl} ${descriptor}` : resolvedUrl
+            })
+            .join(', ')
+        }
+        return { tagName, attribs }
+      },
       a: (tagName, attribs) => {
         // Add security attributes for external links
         if (attribs.href && hasProtocol(attribs.href, { acceptRelative: true })) {