diff --git a/examples/emscripten0/index-tmpl.html b/examples/emscripten0/index-tmpl.html
index 9c52d789..93f21f9c 100644
--- a/examples/emscripten0/index-tmpl.html
+++ b/examples/emscripten0/index-tmpl.html
@@ -97,6 +97,16 @@
                 event.preventDefault();
             }
 
+            function oncontextmenu(event) {
+                if (event.pointerId == 1) {
+                    onpointerdown(event);
+                } else {
+                    onpointerup(event);
+                }
+
+                event.preventDefault();
+            }
+
             function onwheel(event) {
                 let scale = 1.0;
                 switch (event.deltaMode) {
@@ -162,7 +172,7 @@
                 screen.addEventListener('pointerup', onpointerup);
                 screen.addEventListener('mouseup', onpointerup);
 
-                screen.addEventListener('contextmenu', function(event) { event.preventDefault(); });
+                screen.addEventListener('contextmenu', function(event) { oncontextmenu(event); });
                 screen.addEventListener('wheel', onwheel, false);
 
                 screen.addEventListener('touchstart', ontouch);
diff --git a/src/imtui-impl-emscripten.cpp b/src/imtui-impl-emscripten.cpp
index b4e1115b..cb314c17 100644
--- a/src/imtui-impl-emscripten.cpp
+++ b/src/imtui-impl-emscripten.cpp
@@ -65,8 +65,8 @@ void ImTui_ImplEmscripten_NewFrame() {
     ImGui::GetIO().MouseWheelH = lastMouseWheelH;
     ImGui::GetIO().MouseWheel = lastMouseWheel;
     ImGui::GetIO().MouseDown[0] = lastMouseDown[0];
-    ImGui::GetIO().MouseDown[1] = lastMouseDown[1];
-    ImGui::GetIO().MouseDown[2] = lastMouseDown[2];
+    ImGui::GetIO().MouseDown[1] = lastMouseDown[2]; // right-click in browser is 2
+    ImGui::GetIO().MouseDown[2] = lastMouseDown[1]; // scroll-click in browser is 1
     ImGui::GetIO().MouseDown[3] = lastMouseDown[3];
     ImGui::GetIO().MouseDown[4] = lastMouseDown[4];