From 09fe30ec39d5569642cfa43cb2e1edba510ed57b Mon Sep 17 00:00:00 2001
From: SGavrl <277843151+SGavrl@users.noreply.github.com>
Date: Sat, 13 Jun 2026 15:05:29 +0000
Subject: [PATCH] js: implement Element.getAttributeNames()

The method was missing, so calling it threw TypeError: ... is not a
function, which broke Vue 3/Nuxt client hydration (issue #297). Back it with
the existing attribute_names op, the same source as the attributes getter, so
the order matches attributes and outerHTML.
---
 crates/obscura-js/js/bootstrap.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/crates/obscura-js/js/bootstrap.js b/crates/obscura-js/js/bootstrap.js
index 85c50be..66f1f59 100644
--- a/crates/obscura-js/js/bootstrap.js
+++ b/crates/obscura-js/js/bootstrap.js
@@ -1072,6 +1072,7 @@ class Element extends Node {
   removeAttributeNS(ns, n) { _dom("remove_attribute", this._nid, String(n)); }
   hasAttribute(n) { return this.getAttribute(n) !== null; }
   hasAttributes() { return true; } // Simplified
+  getAttributeNames() { return _domParse("attribute_names", this._nid) || []; }
   get attributes() {
     const el = this;
     const names = _domParse("attribute_names", el._nid) || [];