From 2a496f7783474477e84b45aa981c10a1ff5093ec Mon Sep 17 00:00:00 2001
From: Reilly Grant <reillyeon@users.noreply.github.com>
Date: Fri, 27 Feb 2026 11:29:27 -0800
Subject: [PATCH] Reject if baudRate is zero

The documentation of the baudRate member of SerialOptions says that it must be a non-zero value but this was not checked by the method steps for open().
---
 index.html | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/index.html b/index.html
index 9ea5185..e8801f5 100644
--- a/index.html
+++ b/index.html
@@ -708,14 +708,16 @@ <h3>
           |promise| with an "{{InvalidStateError}}" {{DOMException}} and return
           |promise|.
           </li>
+          <li>If |options|["{{SerialOptions/baudRate}}"] is 0, reject |promise|
+          with a {{TypeError}} and return |promise|.
           <li>If |options|["{{SerialOptions/dataBits}}"] is not 7 or 8, reject
-          |promise| with {{TypeError}} and return |promise|.
+          |promise| with a {{TypeError}} and return |promise|.
           </li>
           <li>If |options|["{{SerialOptions/stopBits}}"] is not 1 or 2, reject
-          |promise| with {{TypeError}} and return |promise|.
+          |promise| with a {{TypeError}} and return |promise|.
           </li>
           <li>If |options|["{{SerialOptions/bufferSize}}"] is 0, reject
-          |promise| with {{TypeError}} and return |promise|.
+          |promise| with a {{TypeError}} and return |promise|.
           </li>
           <li>Optionally, if |options|["{{SerialOptions/bufferSize}}"] is
           larger than the implementation is able to support, reject |promise|
@@ -1416,7 +1418,7 @@ <h3>
           |promise|.
           </li>
           <li>If all of the specified members of |signals| are not present
-          reject |promise| with {{TypeError}} and return |promise|.
+          reject |promise| with a {{TypeError}} and return |promise|.
           </li>
           <li>Perform the following steps [=in parallel=]:
             <div class="note">