From adbc049eed4ef8a7464d5d38e44d32b6f08eae10 Mon Sep 17 00:00:00 2001
From: Yash Dogra <yxshdogra@gmail.com>
Date: Mon, 9 Nov 2026 13:54:03 +0530
Subject: [PATCH 1/2] fix(tokenizer): drop unfinished tags after a closing tag
 name or slash at EOF

---
 src/Tokenizer.spec.ts | 9 +++++++++
 src/Tokenizer.ts      | 4 +++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/Tokenizer.spec.ts b/src/Tokenizer.spec.ts
index e596b976..3a31efd1 100644
--- a/src/Tokenizer.spec.ts
+++ b/src/Tokenizer.spec.ts
@@ -222,6 +222,15 @@ describe("Tokenizer", () => {
         expect(tokenize("</>")).toMatchSnapshot();
     });
 
+    it.each(["a</b ", "a<b /"])(
+        "should not emit text for an unfinished tag at EOF for %s",
+        (input) => {
+            expect(
+                tokenize(input).filter(([event]) => event === "ontext"),
+            ).toEqual([["ontext", 0, 1]]);
+        },
+    );
+
     it("should treat <!DOCTYPEhtml> as a declaration", () => {
         expect(tokenize("<!DOCTYPEhtml>")).toMatchSnapshot();
     });
diff --git a/src/Tokenizer.ts b/src/Tokenizer.ts
index 6f983e1b..20ecb76c 100644
--- a/src/Tokenizer.ts
+++ b/src/Tokenizer.ts
@@ -1114,7 +1114,9 @@ export default class Tokenizer {
             case State.InAttributeValueSq:
             case State.InAttributeValueDq:
             case State.InAttributeValueNq:
-            case State.InClosingTagName: {
+            case State.InSelfClosingTag:
+            case State.InClosingTagName:
+            case State.AfterClosingTagName: {
                 /*
                  * If we are currently in an opening or closing tag, us not calling the
                  * respective callback signals that the tag should be ignored.

From db1230d85d988d74b286a973458aaf0c10361a6e Mon Sep 17 00:00:00 2001
From: yxshee <84263676+yxshee@users.noreply.github.com>
Date: Mon, 9 Nov 2026 14:28:26 +0530
Subject: [PATCH 2/2] test(tokenizer): check every chunk split for unfinished
 tags at EOF

---
 src/Tokenizer.spec.ts | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/Tokenizer.spec.ts b/src/Tokenizer.spec.ts
index 3a31efd1..68cc1c7e 100644
--- a/src/Tokenizer.spec.ts
+++ b/src/Tokenizer.spec.ts
@@ -225,9 +225,15 @@ describe("Tokenizer", () => {
     it.each(["a</b ", "a<b /"])(
         "should not emit text for an unfinished tag at EOF for %s",
         (input) => {
-            expect(
-                tokenize(input).filter(([event]) => event === "ontext"),
-            ).toEqual([["ontext", 0, 1]]);
+            for (let split = 0; split <= input.length; split++) {
+                expect(
+                    tokenize((tokenizer) => {
+                        tokenizer.write(input.slice(0, split));
+                        tokenizer.write(input.slice(split));
+                        tokenizer.end();
+                    }).filter(([event]) => event === "ontext"),
+                ).toEqual([["ontext", 0, 1]]);
+            }
         },
     );