From 8d8e25c89d17a934843b8d766a39e7ee20651a99 Mon Sep 17 00:00:00 2001
From: Jonas Jenwald <jonas.jenwald@gmail.com>
Date: Thu, 13 Feb 2025 11:53:45 +0100
Subject: [PATCH] [GenericL10n] Fetch the language bundles in parallel to
 reduce load time

For non `en-US` locales this will, ever so slightly, shorten the time it takes to load and parse the language bundles.
---
 web/genericl10n.js | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/web/genericl10n.js b/web/genericl10n.js
index 03e63d929..2390faec6 100644
--- a/web/genericl10n.js
+++ b/web/genericl10n.js
@@ -89,8 +89,14 @@ class GenericL10n extends L10n {
       }
       langs.push(defaultLang);
     }
-    for (const lang of langs) {
-      const bundle = await this.#createBundle(lang, baseURL, paths);
+    // Trigger fetching of bundles in parallel, to reduce overall load time.
+    const bundles = langs.map(lang => [
+      lang,
+      this.#createBundle(lang, baseURL, paths),
+    ]);
+
+    for (const [lang, bundlePromise] of bundles) {
+      const bundle = await bundlePromise;
       if (bundle) {
         yield bundle;
       } else if (lang === "en-us") {