prevent macOS HTTPS upgrade for localhost resources

src-tauri/src/main.rs

@@ -658,6 +658,17 @@ fn main() {
                 .initialization_script(LINK_HANDLER_SCRIPT)
                 .build()?;
 
+            #[cfg(target_os = "macos")]
+            {
+                use objc2::msg_send;
+                use objc2::runtime::AnyObject;
+                let _ = window.with_webview(|webview| unsafe {
+                    let wk_webview = webview.inner() as *mut AnyObject;
+                    let config: *mut AnyObject = msg_send![wk_webview, configuration];
+                    let _: () = msg_send![config, setUpgradeKnownHostsToHTTPS: false];
+                });
+            }
+
             let (main_js, root_dir) = resolve_script_and_root(app);
             debug_log("Searching for node binary...");
             let node_bin = match find_node_binary(app) {
@@ -858,9 +869,15 @@ fn main() {
                                                 window_label
                                             ));
                                         }
-                                    } else {
-                                        let _ = w.emit(&msg.event, msg.data.clone());
-                                    }
+                                    } else if msg.event == "ready" {
+                            if let Some(url_str) = msg.data.get("url").and_then(|u| u.as_str()) {
+        if let Ok(url_parsed) = url_str.parse::<tauri::Url>() {
+            let _ = w.navigate(url_parsed);
+        }
+    }
+} else {
+    let _ = w.emit(&msg.event, msg.data.clone());
+}
                                 }
                             }
                         });