Ignore Byte-Order-Marker if present

src/deserialize.rs

@@ -26,7 +26,12 @@ pub fn from_str<'input, 'facet, T: Facet<'facet>>(
 where
     'input: 'facet,
 {
-    from_slice(input.as_bytes())
+    let input_bytes = input.as_bytes();
+
+    if input_bytes.starts_with(&[0xef, 0xbb, 0xbf]) {
+        return from_slice(&input_bytes[3..]);
+    }
+    from_slice(input_bytes)
 }
 
 impl Format for crate::Json {

tests/bom.rs

@@ -0,0 +1,22 @@
+use facet::Facet;
+use facet_json::from_str;
+use facet_testhelpers::test;
+
+#[test]
+fn test_basic_with_bom() {
+    #[derive(Debug, Facet)]
+    struct HelloBom {
+        hello: &'static str,
+    }
+    let json = "\u{feff}{\"hello\": \"hi!\"}";
+
+    let result = from_str::<HelloBom>(json);
+    match result {
+        Ok(data) => {
+            assert_eq!(data.hello, "hi!");
+        }
+        Err(e) => {
+            panic!("Failed to parse JSON: {e}");
+        }
+    }
+}