diff --git a/src/photo/form/PhotoForm.tsx b/src/photo/form/PhotoForm.tsx
index 1e14d861..6a452c47 100644
--- a/src/photo/form/PhotoForm.tsx
+++ b/src/photo/form/PhotoForm.tsx
@@ -260,7 +260,12 @@ export default function PhotoForm({
           </div>
         </div>
         <CanvasBlurCapture
-          imageUrl={getNextImageUrlForRequest(url, 640)}
+          imageUrl={getNextImageUrlForRequest(
+            url,
+            640,
+            undefined,
+            window.location.origin,
+          )}
           width={width}
           height={height}
           onLoad={aiContent?.setImageData}
diff --git a/src/site/config.ts b/src/site/config.ts
index 9ba96b94..33259270 100644
--- a/src/site/config.ts
+++ b/src/site/config.ts
@@ -18,9 +18,8 @@ const VERCEL_PRODUCTION_URL = process.env.VERCEL_PROJECT_PRODUCTION_URL;
 const VERCEL_DEPLOYMENT_URL = process.env.NEXT_PUBLIC_VERCEL_URL;
 const VERCEL_BRANCH_URL = process.env.NEXT_PUBLIC_VERCEL_BRANCH_URL;
 const VERCEL_BRANCH = process.env.NEXT_PUBLIC_VERCEL_GIT_COMMIT_REF;
-
-// Cannot reliably be used
-export const VERCEL_PROJECT_URL = VERCEL_BRANCH_URL && VERCEL_BRANCH
+// Last resort: cannot be used reliably
+const VERCEL_PROJECT_URL = VERCEL_BRANCH_URL && VERCEL_BRANCH
   ? `${VERCEL_BRANCH_URL.split(`-git-${VERCEL_BRANCH}-`)[0]}.vercel.app`
   : undefined;
 
@@ -28,6 +27,7 @@ export const VERCEL_PROJECT_URL = VERCEL_BRANCH_URL && VERCEL_BRANCH
 const SITE_DOMAIN =
   process.env.NEXT_PUBLIC_SITE_DOMAIN ||
   VERCEL_PRODUCTION_URL ||
+  VERCEL_PROJECT_URL ||
   VERCEL_DEPLOYMENT_URL;
 
 // Used primarily for absolute references such as OG images