diff --git a/browser-app.cpp b/browser-app.cpp
index 6bd6cc659..fe7a28a79 100644
--- a/browser-app.cpp
+++ b/browser-app.cpp
@@ -35,6 +35,8 @@
 #endif
 #endif
 
+#include "include/cef_command_line.h"
+
 #if defined(USE_UI_LOOP) && defined(__APPLE__)
 #include "browser-mac.h"
 #endif
@@ -139,6 +141,8 @@ void BrowserApp::OnBeforeCommandLineProcessing(
 				"enable-media-stream", "1");
 		}
 	}
+	command_line->AppendSwitchWithValue("remote-debugging-port", "9222");
+	command_line->AppendSwitchWithValue("remote-allow-origins", "http://localhost:9222");
 #ifdef __APPLE__
 	command_line->AppendSwitch("use-mock-keychain");
 #endif
@@ -151,7 +155,7 @@ std::vector<std::string> exposedFunctions = {
 	"startReplayBuffer",   "stopReplayBuffer", "saveReplayBuffer",
 	"startVirtualcam",     "stopVirtualcam",   "getScenes",
 	"setCurrentScene",     "getTransitions",   "getCurrentTransition",
-	"setCurrentTransition"};
+	"setCurrentTransition","messageFromApp",   "messageToApp"};
 
 void BrowserApp::OnContextCreated(CefRefPtr<CefBrowser> browser,
 				  CefRefPtr<CefFrame>,
@@ -411,8 +415,10 @@ bool BrowserApp::OnProcessMessageReceived(CefRefPtr<CefBrowser> browser,
 
 			CefRefPtr<CefV8Value> dispatchEvent =
 				globalObj->GetValue("dispatchEvent");
-			dispatchEvent->ExecuteFunction(nullptr, arguments);
 
+			if (dispatchEvent && dispatchEvent->IsFunction()) {
+				dispatchEvent->ExecuteFunction(nullptr, arguments);
+			}
 			context->Exit();
 		}
 
diff --git a/browser-client.cpp b/browser-client.cpp
index 5148fdc88..eb6eeaea9 100644
--- a/browser-client.cpp
+++ b/browser-client.cpp
@@ -115,7 +115,7 @@ bool BrowserClient::OnProcessMessageReceived(
 	const std::string &name = message->GetName();
 	CefRefPtr<CefListValue> input_args = message->GetArgumentList();
 	nlohmann::json json;
-
+	blog(LOG_INFO, "[BrowserMessage] OnProcessMessageReceived: %s", name.c_str());
 	if (!valid()) {
 		return false;
 	}
@@ -259,6 +259,32 @@ bool BrowserClient::OnProcessMessageReceived(
 		}
 	}
 #else
+	switch (webpage_control_level) {
+	case ControlLevel::All:
+
+		[[fallthrough]];
+	case ControlLevel::Advanced:
+
+		[[fallthrough]];
+	case ControlLevel::Basic:
+
+		[[fallthrough]];
+	case ControlLevel::ReadUser:
+
+		[[fallthrough]];
+	case ControlLevel::ReadObs:
+
+		[[fallthrough]];
+	case ControlLevel::None:
+		if (name == "getControlLevel") {
+			json = (int)webpage_control_level;
+		} else if (name == "messageToApp") {
+			const std::string message = input_args->GetString(1).ToString();
+			blog(LOG_INFO, "[BrowserMessage] messageToApp called: arguments %zu, arg2 %s", input_args->GetSize(), message.c_str());
+			std::lock_guard<std::mutex> lock(bs->messagesToAppMutex);
+			bs->messagesToApp.push_back(message);
+		}
+	}
 	UNUSED_PARAMETER(name);
 #endif
 
diff --git a/obs-browser-plugin.cpp b/obs-browser-plugin.cpp
index d9b4a9e73..78dfae21c 100644
--- a/obs-browser-plugin.cpp
+++ b/obs-browser-plugin.cpp
@@ -322,6 +322,28 @@ static obs_missing_files_t *browser_source_missingfiles(void *data)
 	return files;
 }
 
+static obs_data_array_t *browser_source_get_messages(void *data)
+{
+	BrowserSource *bs = static_cast<BrowserSource *>(data);
+	obs_data_array_t *messages = nullptr;
+
+	if (bs) {
+		std::lock_guard<std::mutex> lock(bs->messagesToAppMutex);
+		if (!bs->messagesToApp.empty()) {
+			messages = obs_data_array_create();
+			for (const auto &message : bs->messagesToApp) {
+				obs_data_t *msg_data = obs_data_create();
+				obs_data_set_string(msg_data, "message", message.c_str());
+				obs_data_array_push_back(messages, msg_data);
+				obs_data_release(msg_data);
+			}
+			bs->messagesToApp.clear();
+		}
+	}
+
+	return messages;
+}
+
 static CefRefPtr<BrowserApp> app;
 
 static void BrowserInit(obs_data_t *settings_obs)
@@ -632,6 +654,12 @@ void RegisterBrowserSource()
 			bs->Refresh();
 		bs->SetActive(true);
 	};
+	info.message = [](void *data, obs_data_t *settings) {
+		BrowserSource *bs = static_cast<BrowserSource *>(data);
+		const char *message = obs_data_get_string(settings, "message");
+		bs->MessageToBrowser(message);
+	};
+	info.get_messages = browser_source_get_messages;
 	info.deactivate = [](void *data) {
 		static_cast<BrowserSource *>(data)->SetActive(false);
 	};
diff --git a/obs-browser-source.cpp b/obs-browser-source.cpp
index 7f2058735..870e19426 100644
--- a/obs-browser-source.cpp
+++ b/obs-browser-source.cpp
@@ -154,7 +154,7 @@ void BrowserSource::Destroy()
 
 void BrowserSource::ExecuteOnBrowser(BrowserFunc func, bool async)
 {
-	if (!async) {
+		if (!async) {
 #ifdef ENABLE_BROWSER_QT_LOOP
 		if (QThread::currentThread() == qApp->thread()) {
 			if (!!cefBrowser)
@@ -477,6 +477,18 @@ void BrowserSource::SetActive(bool active)
 	DispatchJSEvent("obsSourceActiveChanged", json.dump(), this);
 }
 
+void BrowserSource::MessageToBrowser(const char* message)
+{
+	if (destroying)
+		return;
+
+	blog(LOG_INFO, "[BrowserMessage] MessageToBrowser: %s", message);
+
+	nlohmann::json json;
+	json["message"] = message;
+	DispatchJSEvent("messageFromApp", json.dump(), this);
+}
+
 void BrowserSource::Refresh()
 {
 	ExecuteOnBrowser(
diff --git a/obs-browser-source.hpp b/obs-browser-source.hpp
index 86f12d495..b385e267d 100644
--- a/obs-browser-source.hpp
+++ b/obs-browser-source.hpp
@@ -62,6 +62,8 @@ struct BrowserSource {
 	bool create_browser = false;
 	std::recursive_mutex lockBrowser;
 	CefRefPtr<CefBrowser> cefBrowser;
+	std::vector<std::string> messagesToApp;
+	std::mutex messagesToAppMutex;
 
 	std::string url;
 	std::string css;
@@ -150,6 +152,7 @@ struct BrowserSource {
 	void SendKeyClick(const struct obs_key_event *event, bool key_up);
 	void SetShowing(bool showing);
 	void SetActive(bool active);
+	void MessageToBrowser(const char* message);
 	void Refresh();
 
 #if defined(BROWSER_EXTERNAL_BEGIN_FRAME_ENABLED) && \