diff --git a/WebWidgets/ExtJS/src/FrameRenderer.cpp b/WebWidgets/ExtJS/src/FrameRenderer.cpp
index b507e8709..17358b86c 100644
--- a/WebWidgets/ExtJS/src/FrameRenderer.cpp
+++ b/WebWidgets/ExtJS/src/FrameRenderer.cpp
@@ -95,8 +95,12 @@ void FrameRenderer::writeProperties(const Frame* pFrame, std::ostream& ostr)
 	ostr << ",frame:true,header:true,autoScroll:true";
 	if (pFrame->getWidth() > 0)
 		ostr << ",width:" << pFrame->getWidth();
+	else
+		ostr << ",width:'auto'";
 	if (pFrame->getHeight() > 0)
 		ostr << ",height:" << pFrame->getHeight();
+	else
+		ostr << ",height:'auto'";
 	if (!pFrame->getTitle().empty())
 		ostr << ",title:'" << pFrame->getTitle() << "'";
 	if (pFrame->collapsible())
diff --git a/WebWidgets/ExtJS/src/LayoutRenderer.cpp b/WebWidgets/ExtJS/src/LayoutRenderer.cpp
index 149fa74d2..e9f7bedbd 100644
--- a/WebWidgets/ExtJS/src/LayoutRenderer.cpp
+++ b/WebWidgets/ExtJS/src/LayoutRenderer.cpp
@@ -106,6 +106,12 @@ void LayoutRenderer::renderParameters(const Layout* pLayout, const RenderContext
 		
 	if (pLayout->getWidth() > 0)
 		ostr << "width:" << pLayout->getWidth() << ",";
+	else
+		ostr << "width:'auto',";
+	if (pLayout->getHeight() > 0)
+		ostr << "height:" << pLayout->getHeight() << ",";
+	else
+		ostr << "height:'auto',";
 	
 	ostr << "layout:'table'";
 	ostr << ",layoutConfig:" << "{columns:" << cols << "}";