From ee502458954c2839dc51477d6e733447c98eff61 Mon Sep 17 00:00:00 2001
From: yumoqing <yumoqing@gmail.com>
Date: Sat, 15 Aug 2026 11:53:27 +0800
Subject: [PATCH] fix(Svg): cancel stale fetch in set_url so leaf nodes hide
 arrow (race condition)

---
 bricks/svg.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/bricks/svg.js b/bricks/svg.js
index 227acff..64492d7 100644
--- a/bricks/svg.js
+++ b/bricks/svg.js
@@ -23,6 +23,8 @@ bricks.Svg = class extends bricks.VBox {
 		}
 	}
 	set_url(url){
+		this._url_token = (this._url_token || 0) + 1;
+		var token = this._url_token;
 		if (!url){
 			this.dom_element.innerHTML = '';
 			return;
@@ -31,6 +33,7 @@ bricks.Svg = class extends bricks.VBox {
 		fetch(url)
 			.then(response => response.text())
 			.then(svgText => {
+				if (token !== this._url_token) return;
 				if (svgText.startsWith("<svg ")){
 					this.svgText = svgText;
 					this.set_colored_svg(this.color);