From 72e63317b68d30857369e6a4e12ff6667ff36b95 Mon Sep 17 00:00:00 2001 From: Manjiro Sano Date: Tue, 25 Nov 2025 10:47:42 +0530 Subject: [PATCH] docs: clarify case-sensitive value check for highest-available-document-mode Fixes #3506 Added a clear note in the "What does the hint check?" section to inform users that the value check is case-sensitive (ie=edge vs IE=edge). This addresses the confusion mentioned in issue #3506 where the case-sensitivity requirement was buried in the configuration section and not immediately obvious to users. --- packages/hint-highest-available-document-mode/README.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/packages/hint-highest-available-document-mode/README.md b/packages/hint-highest-available-document-mode/README.md index aa372d3c1b2..20c25befab7 100644 --- a/packages/hint-highest-available-document-mode/README.md +++ b/packages/hint-highest-available-document-mode/README.md @@ -50,6 +50,8 @@ By default, the hint checks if the `X-UA-Compatible` response header is sent with the value of `IE=edge`, and that the `meta` tag isn’t used. +**Note:** The value check is case-sensitive. The hint specifically looks for the lowercase value `ie=edge`. If you use `IE=edge` (with uppercase letters), the hint will report an error. However, you can configure the hint to accept different values including case variations (see the configuration section below). + ### Examples that **trigger** the hint for defaults `X-UA-Compatible` response header is not sent: