diff --git a/animation.go b/animation.go
index c98775e..bc86f87 100644
--- a/animation.go
+++ b/animation.go
@@ -776,7 +776,8 @@ func (animation *animationData) writeAnimationString(tag PropertyName, buffer *s
 				if value := animation.Get(tag); value != nil {
 					text := propertyValueToString(tag, value, indent2)
 					if text != "" {
-						buffer.WriteString("\n" + indent2)
+						buffer.WriteRune('\n')
+						buffer.WriteString(indent2)
 						buffer.WriteString(string(tag))
 						buffer.WriteString(" = ")
 						buffer.WriteString(text)
@@ -814,7 +815,8 @@ func (animation *animationData) writeAnimationString(tag PropertyName, buffer *s
 		}
 
 		if props, ok := animation.Get(PropertyTag).([]AnimatedProperty); ok && props != nil && len(props) > 0 {
-			buffer.WriteString("\n" + indent2)
+			buffer.WriteRune('\n')
+			buffer.WriteString(indent2)
 			buffer.WriteString(string(PropertyTag))
 			buffer.WriteString(" = ")
 			if len(props) > 1 {
@@ -824,13 +826,15 @@ func (animation *animationData) writeAnimationString(tag PropertyName, buffer *s
 					writeProperty(prop, indent2+"\t")
 					buffer.WriteString("\n")
 				}
-				buffer.WriteString(indent2 + "],")
+				buffer.WriteString(indent2)
+				buffer.WriteString("],")
 			} else {
 				writeProperty(props[0], indent2)
 			}
 		}
 		buffer.WriteRune('\n')
-		buffer.WriteString(indent + "},\n")
+		buffer.WriteString(indent)
+		buffer.WriteString("},\n")
 	}
 
 	writeAnimation(animation, buffer, indent)
diff --git a/appWasm.go b/appWasm.go
index 045e787..ed3add1 100644
--- a/appWasm.go
+++ b/appWasm.go
@@ -45,7 +45,7 @@ func (app *wasmApp) handleMessage(this js.Value, args []js.Value) any {
 		if ProtocolInDebugLog {
 			DebugLog(text)
 		}
-		if obj := ParseDataText(text); obj != nil {
+		if obj, _ := ParseDataText(text); obj != nil {
 			switch command := obj.Tag(); command {
 			case "session-close":
 				app.close <- obj
@@ -64,7 +64,8 @@ func (app *wasmApp) removeSession(id int) {
 }
 
 func (app *wasmApp) createSession() Session {
-	session := newSession(app, 0, "", ParseDataText(js.Global().Call("sessionInfo", "").String()))
+	obj, _ := ParseDataText(js.Global().Call("sessionInfo", "").String())
+	session := newSession(app, 0, "", obj)
 	session.setBridge(app.close, app.bridge)
 	session.setContent(app.createContentFunc(session))
 	return session