--- a/gfx/layers/basic/BasicCompositor.cpp
+++ b/gfx/layers/basic/BasicCompositor.cpp
@@ -525,29 +525,29 @@ BasicCompositor::BeginFrame(const nsIntR
 
   mInvalidRegion = invalidRegionSafe;
   mInvalidRect = mInvalidRegion.GetBounds();
 
   if (aRenderBoundsOut) {
     *aRenderBoundsOut = Rect();
   }
 
-  if (mInvalidRect.width <= 0 || mInvalidRect.height <= 0) {
-    return;
-  }
-
   if (mTarget) {
     // If we have a copy target, then we don't have a widget-provided mDrawTarget (currently). Use a dummy
     // placeholder so that CreateRenderTarget() works.
     mDrawTarget = gfxPlatform::GetPlatform()->ScreenReferenceDrawTarget();
   } else {
     mDrawTarget = mWidget->StartRemoteDrawingInRegion(mInvalidRegion);
     mInvalidRect = mInvalidRegion.GetBounds();
+    if (mInvalidRect.IsEmpty()) {
+      mWidget->EndRemoteDrawingInRegion(mDrawTarget, mInvalidRegion);
+    }
   }
-  if (!mDrawTarget) {
+
+  if (!mDrawTarget || mInvalidRect.IsEmpty()) {
     return;
   }
 
   // Setup an intermediate render target to buffer all compositing. We will
   // copy this into mDrawTarget (the widget), and/or mTarget in EndFrame()
   RefPtr<CompositingRenderTarget> target = CreateRenderTarget(mInvalidRect, INIT_MODE_CLEAR);
   if (!target) {
     if (!mTarget) {