From fa39dfdeeb571625a3ce10f88d50725ddd945d06 Mon Sep 17 00:00:00 2001
From: Paul Adenot <paul@paul.cx>
Date: Mon, 12 Jan 2026 15:59:35 +0100
Subject: [PATCH] Add explicit step for empty langs in install() algorithm

---
 index.bs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/index.bs b/index.bs
index de706bb..ebd5153 100644
--- a/index.bs
+++ b/index.bs
@@ -421,8 +421,8 @@ See <a href="https://lists.w3.org/Archives/Public/public-speech-api/2012Sep/0072
     When invoked, run these steps:
     1. Let <var>promise</var> be <a>a new promise</a>.
     1. If the [=current settings object=]'s [=relevant global object=]'s [=associated Document=] is NOT [=fully active=], reject <var>promise</var> with an {{InvalidStateError}}, abort these steps, returning <var>promise</var>.
-    1. If any <var>lang</var> in {{SpeechRecognitionOptions/langs}} of <var>options</var> is not a valid [[!BCP47]] language tag, reject <var>promise</var> with a {{SyntaxError}}, abort these steps, returning <var>promise</var>.
     1. If {{SpeechRecognitionOptions/langs}} of <var>options</var> is an empty sequence, resolve <var>promise</var> with <code>false</code>, abort these steps, returning <var>promise</var>.
+    1. If any <var>lang</var> in {{SpeechRecognitionOptions/langs}} of <var>options</var> is not a valid [[!BCP47]] language tag, reject <var>promise</var> with a {{SyntaxError}}, abort these steps, returning <var>promise</var>.
     1. If the on-device speech recognition language pack for any <var>lang</var> in {{SpeechRecognitionOptions/langs}} of <var>options</var> is unsupported, resolve <var>promise</var> with <code>false</code>, abort these steps, returning <var>promise</var>.
     1. [=In parallel=], run the following steps:
         1. For each <var>lang</var> in {{SpeechRecognitionOptions/langs}} of <var>options</var>, initiate the download of the on-device speech recognition language pack for <var>lang</var> matching the requested {{SpeechRecognitionOptions/quality}} level floor.