Available is never returns false, just re-allocate on .Close - test https://github.com/iris-contrib/tests/blob/master/server_test.go

render/template/engine/handlebars/handlebars.go

@@ -123,7 +123,7 @@ func (e *Engine) ExecuteWriter(out io.Writer, name string, binding interface{},
 	isLayout := false
 
 	renderFilename := name
-	if layout != "" && layout != config.NoLayout {
+	if layout != "" {
 		isLayout = true
 		renderFilename = layout // the render becomes the layout, and the name is the partial.
 	}

render/template/engine/html/html.go

@@ -233,7 +233,7 @@ func (s *Engine) runtimeFuncsFor(name string, binding interface{}) {
 
 // ExecuteWriter executes a templates and write its results to the out writer
 func (s *Engine) ExecuteWriter(out io.Writer, name string, binding interface{}, layout string) error {
-	if layout != "" && layout != config.NoLayout {
+	if layout != "" {
 		s.layoutFuncsFor(name, binding)
 		name = layout