diff --git a/src/Draw/Draw_BasicCommands.cxx b/src/Draw/Draw_BasicCommands.cxx
index 0f8dd40da0..d8d0bb0c69 100644
--- a/src/Draw/Draw_BasicCommands.cxx
+++ b/src/Draw/Draw_BasicCommands.cxx
@@ -636,15 +636,21 @@ static Standard_Integer cpulimit(Draw_Interpretor& di, Standard_Integer n, const
   rlimit rlp;
   rlp.rlim_max = RLIM_INFINITY;
   if (n <= 1)
+  {
     rlp.rlim_cur = RLIM_INFINITY;
+  }
   else
+  {
     rlp.rlim_cur = GetCpuLimit (a[1]);
-  CPU_LIMIT = rlp.rlim_cur;
+  }
 
-  int status;
-  status=setrlimit(RLIMIT_CPU,&rlp);
-  if (status !=0)
-    di << "status cpulimit setrlimit : " << status << "\n";
+  CPU_LIMIT = (clock_t )rlp.rlim_cur;
+
+  int aStatus = setrlimit (RLIMIT_CPU, &rlp);
+  if (aStatus != 0)
+  {
+    di << "status cpulimit setrlimit : " << aStatus << "\n";
+  }
 
   // set signal handler to print a message before death
   struct sigaction act, oact;
diff --git a/src/Wasm/Wasm_Window.cxx b/src/Wasm/Wasm_Window.cxx
index 985333b634..71e44783d7 100644
--- a/src/Wasm/Wasm_Window.cxx
+++ b/src/Wasm/Wasm_Window.cxx
@@ -276,14 +276,19 @@ bool Wasm_Window::ProcessMouseEvent (Aspect_WindowInputListener& theListener,
   if (theEvent->metaKey  == EM_TRUE) { aFlags |= Aspect_VKeyFlags_META;  }
 
   const bool isEmulated = false;
-  const Aspect_VKeyMouse aButtons = Wasm_Window::MouseButtonsFromNative (theEvent->buttons);
+  const Aspect_VKeyMouse aButtonsOld = theListener.PressedMouseButtons();
+  Aspect_VKeyMouse aButtons = Wasm_Window::MouseButtonsFromNative (theEvent->buttons);
+  if (theEventType != EMSCRIPTEN_EVENT_MOUSEDOWN)
+  {
+    aButtons &= aButtonsOld; // filter out unexpected buttons
+  }
   switch (theEventType)
   {
     case EMSCRIPTEN_EVENT_MOUSEMOVE:
     {
       if ((aNewPos2i.x() < 0 || aNewPos2i.x() > mySize.x()
         || aNewPos2i.y() < 0 || aNewPos2i.y() > mySize.y())
-        && theListener.PressedMouseButtons() == Aspect_VKeyMouse_NONE)
+        && aButtonsOld == Aspect_VKeyMouse_NONE)
       {
         return false;
       }