emit context created on createTarget event for chromedp

Author: karlseguin

src/browser/browser.zig

@@ -173,6 +173,10 @@ pub const Session = struct {
         const page = &self.page.?;
         try Page.init(page, page_arena.allocator(), self);
 
+        self.notify(&.{ .context_created = .{
+            .origin = try page.origin(),
+        } });
+
         // start JS env
         log.debug("start new js scope", .{});
 

src/cdp/cdp.zig

@@ -404,8 +404,8 @@ pub fn BrowserContext(comptime CDP_T: type) type {
             const self: *Self = @alignCast(@ptrCast(ctx));
 
             switch (notification.*) {
-                .context_created => |cc| {
-                    const aux_data = try std.fmt.allocPrint(self.arena, "{{\"isDefault\":true,\"type\":\"default\",\"frameId\":\"{s}\"}}", .{self.target_id.?});
+                .context_created => |cc| if (self.target_id) |target_id| {
+                    const aux_data = try std.fmt.allocPrint(self.arena, "{{\"isDefault\":true,\"type\":\"default\",\"frameId\":\"{s}\"}}", .{target_id});
                     self.inspector.contextCreated(
                         self.session.page.?.scope,
                         "",

src/cdp/domains/target.zig

@@ -123,6 +123,7 @@ fn createTarget(cmd: anytype) !void {
     const target_id = cmd.cdp.target_id_gen.next();
 
     try bc.createIsolatedWorld();
+    bc.target_id = target_id;
 
     _ = try bc.session.createPage();
 
@@ -149,8 +150,6 @@ fn createTarget(cmd: anytype) !void {
         try doAttachtoTarget(cmd, target_id);
     }
 
-    bc.target_id = target_id;
-
     try cmd.sendResult(.{
         .targetId = target_id,
     }, .{});