diff --git a/user/ansi_parser.c b/user/ansi_parser.c
index 7cc8e9c..3f53c87 100644
--- a/user/ansi_parser.c
+++ b/user/ansi_parser.c
@@ -37,7 +37,7 @@ static const int ansi_en_main = 1;
 
 // Max nr of CSI parameters
 #define CSI_N_MAX 10
-#define STR_CHAR_MAX 64
+#define ANSI_STR_LEN 64
 
 static volatile int cs = -1;
 static volatile bool inside_string = false;
@@ -105,7 +105,7 @@ ansi_parser(char newchar)
 	static int  arg_ni;
 	static int  arg_cnt;
 	static int  arg[CSI_N_MAX];
-	static char string_buffer[STR_CHAR_MAX];
+	static char string_buffer[ANSI_STR_LEN];
 	static int  str_ni;
 
 	// This is used to detect timeout delay (time since last rx char)
diff --git a/user/ansi_parser.rl b/user/ansi_parser.rl
index c127f6c..2f74623 100644
--- a/user/ansi_parser.rl
+++ b/user/ansi_parser.rl
@@ -12,7 +12,7 @@
 
 // Max nr of CSI parameters
 #define CSI_N_MAX 10
-#define STR_CHAR_MAX 64
+#define ANSI_STR_LEN 64
 
 static volatile int cs = -1;
 static volatile bool inside_string = false;
@@ -80,7 +80,7 @@ ansi_parser(char newchar)
 	static int  arg_ni;
 	static int  arg_cnt;
 	static int  arg[CSI_N_MAX];
-	static char string_buffer[STR_CHAR_MAX];
+	static char string_buffer[ANSI_STR_LEN];
 	static int  str_ni;
 
 	// This is used to detect timeout delay (time since last rx char)
diff --git a/user/apars_osc.c b/user/apars_osc.c
index 83ac913..b13f9d7 100644
--- a/user/apars_osc.c
+++ b/user/apars_osc.c
@@ -14,13 +14,14 @@
 #include "apars_logging.h"
 #include "screen.h"
 #include "ansi_parser.h"
+#include "cgi_sockets.h"
 
 /**
  * Helper function to parse incoming OSC (Operating System Control)
  * @param buffer - the OSC body (after OSC and before ST)
  */
 void ICACHE_FLASH_ATTR
-apars_handle_osc(const char *buffer)
+apars_handle_osc(char *buffer)
 {
 	int n = 0;
 	char c = 0;
@@ -38,6 +39,11 @@ apars_handle_osc(const char *buffer)
 		if (n == 0 || n == 2) {
 			screen_set_title(buffer);
 		}
+		else if (n == 9) {
+			buffer--;
+			buffer[0] = 'g';
+			notify_growl(buffer);
+		}
 		else if (n >= 81 && n <= 85) { // ESPTerm: action button label
 			screen_set_button_text(n - 80, buffer);
 		}
diff --git a/user/apars_osc.h b/user/apars_osc.h
index cd2c96f..b2c6253 100644
--- a/user/apars_osc.h
+++ b/user/apars_osc.h
@@ -5,6 +5,6 @@
 #ifndef ESP_VT100_FIRMWARE_APARS_OSC_H
 #define ESP_VT100_FIRMWARE_APARS_OSC_H
 
-void apars_handle_osc(const char *buffer);
+void apars_handle_osc(char *buffer);
 
 #endif //ESP_VT100_FIRMWARE_APARS_OSC_H
diff --git a/user/apars_string.c b/user/apars_string.c
index 08de067..dbd2382 100644
--- a/user/apars_string.c
+++ b/user/apars_string.c
@@ -21,7 +21,7 @@
 // ----- Generic String cmd - disambiguation -----
 
 void ICACHE_FLASH_ATTR
-apars_handle_string_cmd(char leadchar, const char *buffer)
+apars_handle_string_cmd(char leadchar, char *buffer)
 {
 	switch (leadchar) {
 		case 'k': // ESC k TITLE ST (defined in GNU screen manpage)
diff --git a/user/apars_string.h b/user/apars_string.h
index 1305905..da566b1 100644
--- a/user/apars_string.h
+++ b/user/apars_string.h
@@ -5,6 +5,7 @@
 #ifndef ESP_VT100_FIRMWARE_APARS_STRING_H
 #define ESP_VT100_FIRMWARE_APARS_STRING_H
 
-void apars_handle_string_cmd(char leadchar, const char *buffer);
+// not const char so some edits can be made when processing
+void apars_handle_string_cmd(char leadchar, char *buffer);
 
 #endif //ESP_VT100_FIRMWARE_APARS_STRING_H
diff --git a/user/cgi_sockets.c b/user/cgi_sockets.c
index e409c8f..1fc2879 100644
--- a/user/cgi_sockets.c
+++ b/user/cgi_sockets.c
@@ -119,6 +119,16 @@ send_beep(void)
 }
 
 
+/** Pop-up notification (from iTerm2) */
+void ICACHE_FLASH_ATTR
+notify_growl(char *msg)
+{
+	// TODO via timer...
+	// here's some potential for a race error with the other broadcast functions :C
+	cgiWebsockBroadcast(URL_WS_UPDATE, msg, (int) strlen(msg), 0);
+}
+
+
 /**
  * Broadcast screen state to sockets.
  * This is a callback for the Screen module,
diff --git a/user/cgi_sockets.h b/user/cgi_sockets.h
index 83998cf..3d3a711 100644
--- a/user/cgi_sockets.h
+++ b/user/cgi_sockets.h
@@ -12,6 +12,9 @@ void notify_empty_txbuf(void);
 
 void send_beep(void);
 
+/** open pop-up notification */
+void notify_growl(char *msg);
+
 // defined in the makefile
 #if DEBUG_INPUT
 #define ws_warn warn