From 055395aaeddd5ae51f5c131e1cb7046fe4695bfb Mon Sep 17 00:00:00 2001
From: Hajime-san <41257923+Hajime-san@users.noreply.github.com>
Date: Sat, 21 Sep 2024 15:59:14 +0900
Subject: [PATCH] add comments for the reference of image mimesniff

---
 ext/canvas/op_create_image_bitmap.rs | 3 ---
 ext/web/01_mimesniff.js              | 4 ++++
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/ext/canvas/op_create_image_bitmap.rs b/ext/canvas/op_create_image_bitmap.rs
index e4334d9b20ee7d..3ce5d13b9ef483 100644
--- a/ext/canvas/op_create_image_bitmap.rs
+++ b/ext/canvas/op_create_image_bitmap.rs
@@ -179,9 +179,6 @@ See: https://developer.mozilla.org/en-US/docs/Web/API/Blob/type\n",
         }
         // return an error if the MIME type is not supported in the variable list of ImageTypePatternTable below
         // ext/web/01_mimesniff.js
-        //
-        // NOTE: Chromium supports AVIF
-        // https://source.chromium.org/chromium/chromium/src/+/ef3f4e4ed97079dc57861d1195fb2389483bc195:third_party/blink/renderer/platform/image-decoders/image_decoder.cc;l=311
         x => {
           return Err(
             DOMExceptionInvalidStateError::new(
diff --git a/ext/web/01_mimesniff.js b/ext/web/01_mimesniff.js
index e60783bbe171ac..bfc4a9ec52092d 100644
--- a/ext/web/01_mimesniff.js
+++ b/ext/web/01_mimesniff.js
@@ -395,6 +395,10 @@ const ImageTypePatternTable = [
 
 /**
  * Ref: https://mimesniff.spec.whatwg.org/#image-type-pattern-matching-algorithm
+ * NOTE: Some browsers have implementation-defined image types.
+ * For example, The AVIF image type is supported by all browsers today.
+ * However, the standardization seems to have hard going.
+ * See: https://github.com/whatwg/mimesniff/issues/143
  * @param {Uint8Array} input
  * @returns {string | undefined}
  */