diff --git a/misc/portability.md b/misc/portability.md
index 27935a1ed..f4814a339 100644
--- a/misc/portability.md
+++ b/misc/portability.md
@@ -60,8 +60,8 @@ posix note: Register access is highly dependent on OS and architecture.
 Play multiple audio streams with varying sample rates
 
 Define:
-- ```CC_BUILD_WIN``` - Use WinMM for audio
-- ```CC_BUILD_POSIX``` - Use OpenAL for audio
+- ```CC_BUILD_WINMM``` - Use WinMM for audio (Windows)
+- ```CC_BUILD_OpenAL``` - Use OpenAL for audio
 
 ### 3D Graphics
 Texturing, depth buffer, alpha, etc (See Graphics.h for full list)
@@ -76,5 +76,5 @@ Define:
 HTTP, HTTPS, and cookies (ETag and Last-Modified recommended)
 
 Define:
-- ```CC_BUILD_WIN``` - use WinINet as http backend
-- ```CC_BUILD_POSIX``` - use libcurl as http backend
\ No newline at end of file
+- ```CC_BUILD_WININET``` - use WinINet for http (Windows)
+- ```CC_BUILD_CURL``` - use libcurl for http
\ No newline at end of file
diff --git a/src/Audio.c b/src/Audio.c
index a4f1235e8..2d034ed9d 100644
--- a/src/Audio.c
+++ b/src/Audio.c
@@ -12,7 +12,7 @@
 #include "Chat.h"
 #include "Stream.h"
 
-#if defined CC_BUILD_WIN
+#if defined CC_BUILD_WINMM
 #define WIN32_LEAN_AND_MEAN
 #define NOSERVICE
 #define NOMCX
@@ -24,7 +24,7 @@
 
 #include <windows.h>
 #include <mmsystem.h>
-#elif defined CC_BUILD_POSIX
+#elif defined CC_BUILD_OPENAL
 #include <pthread.h>
 #if defined CC_BUILD_OSX
 #include <OpenAL/al.h>
@@ -70,7 +70,7 @@ static void Volume_Mix8(uint8_t* samples, int count, int volume) {
 *------------------------------------------------Native implementation----------------------------------------------------*
 *#########################################################################################################################*/
 static ReturnCode Audio_AllCompleted(AudioHandle handle, bool* finished);
-#if defined CC_BUILD_WIN
+#if defined CC_BUILD_WINMM
 struct AudioContext {
 	HWAVEOUT Handle;
 	WAVEHDR Headers[AUDIO_MAX_BUFFERS];
@@ -175,7 +175,7 @@ ReturnCode Audio_IsCompleted(AudioHandle handle, int idx, bool* completed) {
 }
 
 ReturnCode Audio_IsFinished(AudioHandle handle, bool* finished) { return Audio_AllCompleted(handle, finished); }
-#elif defined CC_BUILD_POSIX
+#elif defined CC_BUILD_OPENAL
 struct AudioContext {
 	ALuint Source;
 	ALuint Buffers[AUDIO_MAX_BUFFERS];
@@ -382,7 +382,22 @@ ReturnCode Audio_IsFinished(AudioHandle handle, bool* finished) {
 	alGetSourcei(ctx->Source, AL_SOURCE_STATE, &state);
 	*finished = state != AL_PLAYING; return 0;
 }
+#else
+struct AudioContext { int Count; struct AudioFormat Format; };
+static struct AudioContext Audio_Contexts[1];
+
+void Audio_Open(AudioHandle* handle, int buffers) { }
+ReturnCode Audio_Close(AudioHandle handle) { return 1; }
+ReturnCode Audio_SetFormat(AudioHandle handle, struct AudioFormat* format) { return 1; }
+ReturnCode Audio_BufferData(AudioHandle handle, int idx, void* data, uint32_t dataSize) { return 1; }
+ReturnCode Audio_Play(AudioHandle handle) { return 1; }
+ReturnCode Audio_Stop(AudioHandle handle) { return 1; }
+ReturnCode Audio_IsCompleted(AudioHandle handle, int idx, bool* completed) { return 1; }
+ReturnCode Audio_IsFinished(AudioHandle handle, bool* finished) { return 1; }
+void Audio_SysInit(void) { }
+void Audio_SysFree(void) { }
 #endif
+
 static ReturnCode Audio_AllCompleted(AudioHandle handle, bool* finished) {
 	struct AudioContext* ctx = &Audio_Contexts[handle];
 	ReturnCode res;
diff --git a/src/Core.h b/src/Core.h
index 649f004af..f5e0c23a8 100644
--- a/src/Core.h
+++ b/src/Core.h
@@ -135,7 +135,7 @@ typedef struct TextureRec_ { float U1, V1, U2, V2; } TextureRec;
 #define CC_BUILD_GLMODERN
 #define CC_BUILD_WEBCANVAS
 #define CC_BUILD_WEBGL
-//#error "Web backend is still a WIP. Please do not publicly mention it, thanks."
+#error "Web backend is still a WIP. Please do not publicly mention it, thanks."
 #endif
 #endif
 
diff --git a/src/Http.c b/src/Http.c
index e7d8ffde0..5f7499405 100644
--- a/src/Http.c
+++ b/src/Http.c
@@ -5,7 +5,7 @@
 #include "Stream.h"
 #include "GameStructs.h"
 
-#if defined CC_BUILD_WIN
+#if defined CC_BUILD_WININET
 #define WIN32_LEAN_AND_MEAN
 #define NOSERVICE
 #define NOMCX
@@ -20,10 +20,8 @@
 #define HTTP_QUERY_ETAG 54 /* Missing from some old MingW32 headers */
 #elif defined CC_BUILD_WEB
 /* Use javascript web api for Emscripten */
-#undef CC_BUILD_POSIX
 #include <emscripten/fetch.h>
-#elif defined CC_BUILD_POSIX
-/* POSIX is mainly shared between Linux and OSX */
+#elif defined CC_BUILD_CURL
 #include <curl/curl.h>
 #include <time.h>
 #endif
@@ -229,7 +227,7 @@ static void Http_FinishRequest(struct HttpRequest* req) {
 /*########################################################################################################################*
 *------------------------------------------------Emscripten implementation------------------------------------------------*
 *#########################################################################################################################*/
-#ifdef CC_BUILD_WEB
+#if defined CC_BUILD_WEB
 static void Http_SysInit(void) { }
 static void Http_SysFree(void) { }
 static void Http_DownloadAsync(struct HttpRequest* req);
@@ -298,7 +296,7 @@ static void Http_DownloadAsync(struct HttpRequest* req) {
 /*########################################################################################################################*
 *--------------------------------------------------Native implementation--------------------------------------------------*
 *#########################################################################################################################*/
-#ifdef CC_BUILD_WIN
+#if defined CC_BUILD_WININET
 static HINTERNET hInternet;
 /* TODO: Test last modified and etag even work */
 #define FLAG_STATUS  HTTP_QUERY_STATUS_CODE    | HTTP_QUERY_FLAG_NUMBER
@@ -534,8 +532,7 @@ static void Http_SysFree(void) {
 	}
 	InternetCloseHandle(hInternet);
 }
-#endif
-#ifdef CC_BUILD_POSIX
+#elif defined CC_BUILD_CURL
 static CURL* curl;
 
 static void Http_SysInit(void) {
diff --git a/src/Window.c b/src/Window.c
index 14aac3818..8c4f5336d 100644
--- a/src/Window.c
+++ b/src/Window.c
@@ -2549,13 +2549,26 @@ static void Window_RefreshBounds(void) {
 	Window_Bounds = r;
 }
 
+static void Window_CorrectFocus(void) {
+	/* Sometimes emscripten_request_pointerlock doesn't always acquire focus */
+	/* Browser also only allows pointer locks requests in response to user input */
+	EmscriptenPointerlockChangeEvent status;
+	status.isActive = false;
+	return;
+
+	emscripten_get_pointerlock_status(&status);
+	if (win_rawMouse && !status.isActive) Window_EnableRawMouse();
+}
+
 static EM_BOOL Window_MouseWheel(int type, const EmscriptenWheelEvent* ev, void* data) {
 	Mouse_SetWheel(Mouse_Wheel - ev->deltaY);
+	Window_CorrectFocus();
 	return true;
 }
 
 static EM_BOOL Window_MouseButton(int type, const EmscriptenMouseEvent* ev, void* data) {
 	MouseButton btn;
+	Window_CorrectFocus();
 
 	switch (ev->button) {
 		case 0: btn = MOUSE_LEFT;   break;
@@ -2664,7 +2677,9 @@ static Key Window_MapKey(int k) {
 
 static EM_BOOL Window_Key(int type, const EmscriptenKeyboardEvent* ev , void* data) {
 	Key key = Window_MapKey(ev->keyCode);
-	int kc = ev->keyCode;
+	int kc  = ev->keyCode;
+
+	Window_CorrectFocus();
 	if (!key) return false;
 
 	if (ev->location == DOM_KEY_LOCATION_RIGHT) {
@@ -2686,12 +2701,14 @@ static EM_BOOL Window_Key(int type, const EmscriptenKeyboardEvent* ev , void* da
 	/* Must not intercept keydown for regular keys, otherwise KeyPress doesn't get raised */
 	/* However, do want to prevent browser's behaviour on F11,F5, home etc */
 	/* e.g. not preventing F11 means browser makes page fullscreen instead of just canvas */
-	return (key >= KEY_F1 && key <= KEY_F35) || (key >= KEY_UP && key <= KEY_RIGHT) ||
-			(key >= KEY_INSERT && key <= KEY_MENU) || (key >= KEY_ENTER && key <= KEY_NUMLOCK);
+	return (key >= KEY_F1 && key <= KEY_F35)   || (key >= KEY_UP && key <= KEY_RIGHT) ||
+		(key >= KEY_INSERT && key <= KEY_MENU) || (key >= KEY_ENTER && key <= KEY_NUMLOCK && key != KEY_SPACE);
 }
 
 static EM_BOOL Window_KeyPress(int type, const EmscriptenKeyboardEvent* ev, void* data) {
 	char keyChar;
+	Window_CorrectFocus();
+
 	if (Convert_TryUnicodeToCP437(ev->charCode, &keyChar)) {
 		Event_RaiseInt(&KeyEvents.Press, keyChar);
 	}