diff --git a/src/Chat.c b/src/Chat.c
index 956f6212e..1d5dc624f 100644
--- a/src/Chat.c
+++ b/src/Chat.c
@@ -590,6 +590,14 @@ void Chat_Send(const cc_string* text, cc_bool logUsage) {
 	Event_RaiseChat(&ChatEvents.ChatSending, text, 0);
 	if (logUsage) StringsBuffer_Add(&Chat_InputLog, text);
 
+#ifdef CC_BUILD_WEB
+	if (String_CaselessEqualsConst(text, "/client debug")) {
+		Chat_AddRaw("DEBUG CANNON ENGAGED");
+		extern int Window_Debug;
+		Window_Debug = true;
+	}
+#endif
+
 	if (Commands_IsCommandPrefix(text)) {
 		Commands_Execute(text);
 	} else {
diff --git a/src/Screens.c b/src/Screens.c
index b409530b4..662dc0d12 100644
--- a/src/Screens.c
+++ b/src/Screens.c
@@ -795,6 +795,7 @@ static cc_bool ChatScreen_ChatUpdateFont(struct ChatScreen* s) {
 	Math_Clamp(size, 8, 60);
 
 	/* don't recreate font if possible */
+	/* TODO: Add function for this, don't use Display_ScaleY (Drawer2D_SameFontSize ??) */
 	if (Display_ScaleY(size) == s->chatFont.size) return false;
 	ChatScreen_FreeChatFonts(s);
 	Drawer2D_MakeFont(&s->chatFont, size, FONT_FLAGS_NONE);
diff --git a/src/Window.c b/src/Window.c
index b2aad8233..4ca354b11 100644
--- a/src/Window.c
+++ b/src/Window.c
@@ -3520,7 +3520,33 @@ void Window_Close(void) {
 	UnhookEvents();
 }
 
+#include "Chat.h"
+static void LogStuff(void) {
+	char buffer[256]; cc_string str = String_FromArray(buffer);
+	int width, height;
+	double css_width, css_height;
+
+	width  = GetCanvasWidth();
+	height = GetCanvasHeight();
+	String_Format2(&str, "Size: %ix%i", &width, &height);
+	Chat_AddOf(&str, MSG_TYPE_STATUS_1);
+	str.length = 0;
+
+	width  = EM_ASM_INT_V({ return window.innerHeight; });
+	height = EM_ASM_INT_V({ return window.outerHeight; });
+	String_Format2(&str, "I:%i O:%i", &width, &height);
+	Chat_AddOf(&str, MSG_TYPE_STATUS_2);
+	str.length = 0;
+
+	width  = GetScreenWidth();
+	height = GetScreenHeight();
+	String_Format2(&str, "Dims: %ix%i", &width, &height);
+	Chat_AddOf(&str, MSG_TYPE_STATUS_3);
+}
+
+int Window_Debug;
 void Window_ProcessEvents(void) {
+	if (Window_Debug) LogStuff();
 	if (!needResize) return;
 	needResize = false;