diff --git a/content/canvas/src/nsCanvasRenderingContext2D.cpp b/content/canvas/src/nsCanvasRenderingContext2D.cpp
index 47b62fed6f8..6ad89d22df9 100644
--- a/content/canvas/src/nsCanvasRenderingContext2D.cpp
+++ b/content/canvas/src/nsCanvasRenderingContext2D.cpp
@@ -2028,6 +2028,9 @@ nsCanvasRenderingContext2D::FillRect(float x, float y, float w, float h)
 NS_IMETHODIMP
 nsCanvasRenderingContext2D::StrokeRect(float x, float y, float w, float h)
 {
+    if (w == 0.f && h == 0.f) {
+        return NS_OK;
+    }
     return DrawRect(gfxRect(x, y, w, h), STYLE_STROKE);
 }
 
diff --git a/content/canvas/test/test_canvas.html b/content/canvas/test/test_canvas.html
index 4702e4cca06..1bccbcdac8d 100644
--- a/content/canvas/test/test_canvas.html
+++ b/content/canvas/test/test_canvas.html
@@ -18395,7 +18395,7 @@ ctx.lineWidth = 250;
 ctx.lineCap = 'round';
 ctx.lineJoin = 'round';
 ctx.strokeRect(50, 25, 0, 0);
-todo_isPixel(ctx, 50,25, 0,0,0,0, 0);
+isPixel(ctx, 50,25, 0,0,0,0, 0);
 
 
 }