Redirect trailing slashes

crates/lib/page/src/server.rs

@@ -130,6 +130,38 @@ impl PageServer {
 			.and_then(|x| x.to_str().ok())
 			.unwrap_or("");
 
+		// Normalize url with redirect
+		if route.ends_with('/') || route.contains("//") || route.starts_with('/') {
+			let mut new_route = route.clone();
+			while new_route.contains("//") {
+				new_route = new_route.replace("//", "/");
+			}
+			let new_route = new_route.trim_matches('/');
+
+			trace!(
+				message = "Redirecting route",
+				route,
+				new_route,
+				addr = ?addr.addr,
+				user_agent = ua,
+				device_type = ?client_info.device_type
+			);
+
+			let mut headers = HeaderMap::with_capacity(2);
+
+			let new_route = match HeaderValue::from_str(&format!("/{new_route}")) {
+				Ok(x) => x,
+				Err(_) => {
+					// Be extra careful, this is user-provided data
+					return StatusCode::BAD_REQUEST.into_response();
+				}
+			};
+
+			headers.append(header::LOCATION, new_route);
+			headers.append("Accept-CH", HeaderValue::from_static("Sec-CH-UA-Mobile"));
+			return (StatusCode::PERMANENT_REDIRECT, headers).into_response();
+		}
+
 		trace!(
 			message = "Serving route",
 			route,