Make CDP frame-aware

src/browser/Page.zig

@@ -1210,7 +1210,7 @@ pub fn iframeAddedCallback(self: *Page, iframe: *Element.Html.IFrame) !void {
     page_frame.iframe = iframe;
     iframe._content_window = page_frame.window;
 
-    page_frame.navigate(src, .{}) catch |err| {
+    page_frame.navigate(src, .{.reason = .initialFrameNavigation}) catch |err| {
         log.warn(.page, "iframe navigate failure", .{ .url = src, .err = err });
         self._pending_loads -= 1;
         iframe._content_window = null;
@@ -3119,6 +3119,7 @@ pub const NavigateReason = enum {
     script,
     history,
     navigation,
+    initialFrameNavigation,
 };
 
 pub const NavigateOpts = struct {

src/cdp/domains/page.zig

@@ -252,13 +252,14 @@ pub fn pageNavigate(bc: anytype, event: *const Notification.PageNavigate) !void
         .address_bar => null,
     };
     if (reason_) |reason| {
-        try cdp.sendEvent("Page.frameScheduledNavigation", .{
-            .frameId = frame_id,
-            .delay = 0,
-            .reason = reason,
-            .url = event.url,
-        }, .{ .session_id = session_id });
-
+        if (reason != .initialFrameNavigation) {
+            try cdp.sendEvent("Page.frameScheduledNavigation", .{
+                .frameId = frame_id,
+                .delay = 0,
+                .reason = reason,
+                .url = event.url,
+            }, .{ .session_id = session_id });
+        }
         try cdp.sendEvent("Page.frameRequestedNavigation", .{
             .frameId = frame_id,
             .reason = reason,