Trim whitespaces only while setting scheme

url/src/lib.rs

@@ -2314,7 +2314,7 @@ impl Url {
     #[allow(clippy::result_unit_err, clippy::suspicious_operation_groupings)]
     pub fn set_scheme(&mut self, scheme: &str) -> Result<(), ()> {
         let mut parser = Parser::for_setter(String::new());
-        let remaining = parser.parse_scheme(parser::Input::new(scheme))?;
+        let remaining = parser.parse_scheme(parser::Input::trim_tab_and_newlines(scheme, None))?;
         let new_scheme_type = SchemeType::from(&parser.serialization);
         let old_scheme_type = SchemeType::from(self.scheme());
         // If url’s scheme is a special scheme and buffer is not a special scheme, then return.

url/tests/unit.rs

@@ -147,6 +147,17 @@ fn new_path_windows_fun() {
     }
 }
 
+#[test]
+fn set_scheme_with_leading_or_trailing_c0_controls_should_result_in_noop() {
+    let mut url: Url = "http://test".parse().unwrap();
+
+    let controls = ["\u{0000}", "\u{000C}", "\u{000E}", "\u{0020}"];
+    for control in controls.iter() {
+        assert!(url.set_scheme(&format!("{}https", control)).is_err());
+        assert!(url.set_scheme(&format!("https{}", control)).is_err());
+    }
+}
+
 #[test]
 fn new_directory_paths() {
     if cfg!(unix) {