From ab73569393603c76480ffafc56c822ffc5fff3b7 Mon Sep 17 00:00:00 2001
From: simojenki <simojenki@users.noreply.github.com>
Date: Sat, 14 Aug 2021 17:47:59 +1000
Subject: [PATCH] Trim langs from accept header

---
 src/i8n.ts        | 2 +-
 tests/i8n.test.ts | 9 +++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/i8n.ts b/src/i8n.ts
index a1d2157..bd9e1fd 100644
--- a/src/i8n.ts
+++ b/src/i8n.ts
@@ -107,7 +107,7 @@ export const randomLang = () => _.shuffle(["en-US", "nl-NL"])[0]!;
 
 export const asLANGs = (acceptLanguageHeader: string | undefined) => {
   const z = acceptLanguageHeader?.split(";")[0];
-  return z && z != "" ? z.split(",") : [];
+  return z && z != "" ? z.split(",").map(it => it.trim()) : [];
 };
 
 export type I8N = (...langs: string[]) => Lang;
diff --git a/tests/i8n.test.ts b/tests/i8n.test.ts
index 39a5789..d804a6d 100644
--- a/tests/i8n.test.ts
+++ b/tests/i8n.test.ts
@@ -21,6 +21,15 @@ describe("i8n", () => {
         ]);
       });
     });
+    describe("when there are multiple in the accept-langauge header with spaces", () => {
+      it("should split them out and return them", () => {
+        expect(asLANGs("es-ES, es, en-US;q=0.9, en;q=0.8")).toEqual([
+          "es-ES",
+          "es",
+          "en-US",
+        ]);
+      });
+    });
   });
 
   describe("langs", () => {