From 2c08c6c7fdbaa419f04dfe16d0bc598b6dec72d2 Mon Sep 17 00:00:00 2001
From: xfy <i@rua.plus>
Date: Mon, 8 Jun 2026 15:29:17 +0800
Subject: [PATCH] fix(image): case-insensitive format matching in process_image

---
 src/api/image.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/api/image.rs b/src/api/image.rs
index 6cb78cf..5cf057b 100644
--- a/src/api/image.rs
+++ b/src/api/image.rs
@@ -183,8 +183,8 @@ fn process_image(
         }
     }
 
-    // Output format
-    let output_format = match params.format.as_deref() {
+    // Output format (case-insensitive)
+    let output_format = match params.format.as_deref().map(str::to_lowercase).as_deref() {
         Some("webp") => image::ImageFormat::WebP,
         Some("png") => image::ImageFormat::Png,
         Some("jpeg") | Some("jpg") => image::ImageFormat::Jpeg,