diff --git a/frontend/.gitignore b/frontend/.gitignore
index 6a5f9f9d..ce9f3eb7 100644
--- a/frontend/.gitignore
+++ b/frontend/.gitignore
@@ -26,6 +26,7 @@ Thumbs.db
 !.env.test
 
 # Vite
+.vite/
 vite.config.js.timestamp-*
 vite.config.ts.timestamp-*
 
diff --git a/frontend/package.json b/frontend/package.json
index 068aeeab..2e49b7aa 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -14,7 +14,8 @@
 		"check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch",
 		"format": "prettier --write .",
 		"lint": "prettier --check . && eslint .",
-		"test:unit": "vitest",
+		"test:unit": "vitest --project server",
+		"test:unit:full": "vitest",
 		"test": "npm run test:unit -- --run && npm run test:e2e",
 		"test:e2e": "playwright test"
 	},
diff --git a/frontend/src/lib/utils.ts b/frontend/src/lib/utils.ts
index fca43238..3e996ac5 100644
--- a/frontend/src/lib/utils.ts
+++ b/frontend/src/lib/utils.ts
@@ -43,18 +43,23 @@ function parseAbsoluteLikeUrl(value: string): URL | null {
 	if (!trimmed) return null;
 
 	try {
-		return new URL(trimmed);
-	} catch {
-		// Soporta formato host:puerto/ruta sin protocolo.
-		if (/^[a-z0-9.-]+:\d+\//i.test(trimmed)) {
-			try {
-				return new URL(`http://${trimmed}`);
-			} catch {
-				return null;
-			}
+		const parsed = new URL(trimmed);
+		if (parsed.protocol === 'http:' || parsed.protocol === 'https:') {
+			return parsed;
 		}
-		return null;
+	} catch {
 	}
+
+	// Soporta formato host:puerto/ruta sin protocolo.
+	if (/^[a-z0-9.-]+:\d+\//i.test(trimmed)) {
+		try {
+			return new URL(`http://${trimmed}`);
+		} catch {
+			return null;
+		}
+	}
+
+	return null;
 }
 
 function rewriteInternalHostToPublicUrl(value: string): string {
diff --git a/frontend/vite.config.ts b/frontend/vite.config.ts
index 24c69218..3c60fcc4 100644
--- a/frontend/vite.config.ts
+++ b/frontend/vite.config.ts
@@ -38,7 +38,7 @@ const vitestClientProject = {
 
 export default defineConfig({
 	server: {
-		port: 5173, // fija el puerto
+		port: 	5173, // fija el puerto
 		host: true, // escucha en 0.0.0.0
 		// Lista explícita + peticiones internas (p. ej. chunks JSON `?import`) pueden usar
 		// Hosts distintos y recibir 403. `true` permite cualquier Host en dev.