From bd5b480c236751f68f7ba842d63a05f6e7e80962 Mon Sep 17 00:00:00 2001
From: Matt Bierner <12821956+mjbvz@users.noreply.github.com>
Date: Fri, 27 Mar 2026 00:42:39 -0700
Subject: [PATCH] Use `areUrisEqual` helper for better uri checks

---
 extensions/markdown-language-features/src/preview/preview.ts | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/extensions/markdown-language-features/src/preview/preview.ts b/extensions/markdown-language-features/src/preview/preview.ts
index a96a0ae028f..4dc949eae05 100644
--- a/extensions/markdown-language-features/src/preview/preview.ts
+++ b/extensions/markdown-language-features/src/preview/preview.ts
@@ -129,8 +129,9 @@ class MarkdownPreview extends Disposable implements WebviewResourceProvider {
 			const watcher = this._register(vscode.workspace.createFileSystemWatcher(new vscode.RelativePattern(resource, '*')));
 			this._register(watcher.onDidChange(uri => {
 				if (this.isPreviewOf(uri)) {
-					// Only use the file system event when VS Code does not already know about the file
-					if (!vscode.workspace.textDocuments.some(doc => doc.uri.toString() === uri.toString())) {
+					// Only use the file system event when VS Code does not already know about the file.
+					// This is needed to avoid duplicate refreshes
+					if (!vscode.workspace.textDocuments.some(doc => areUrisEqual(doc.uri, uri))) {
 						this.refresh();
 					}
 				}