From 9050ee1639a20463e3cafce58964c9ef0fa38205 Mon Sep 17 00:00:00 2001
From: Laurenz <laurmaedje@gmail.com>
Date: Mon, 23 Jun 2025 14:22:09 +0200
Subject: Turn non-empty void element into export error

---
 crates/typst-html/src/encode.rs | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'crates/typst-html/src/encode.rs')

diff --git a/crates/typst-html/src/encode.rs b/crates/typst-html/src/encode.rs
index eb25ab1e..2bfa78a7 100644
--- a/crates/typst-html/src/encode.rs
+++ b/crates/typst-html/src/encode.rs
@@ -89,6 +89,9 @@ fn write_element(w: &mut Writer, element: &HtmlElement) -> SourceResult<()> {
     w.buf.push('>');
 
     if tag::is_void(element.tag) {
+        if !element.children.is_empty() {
+            bail!(element.span, "HTML void elements must not have children");
+        }
         return Ok(());
     }
 
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