From c42b7e961f1db6bad85c338f69c840ea7ad5d5ea Mon Sep 17 00:00:00 2001
From: Thomas Eizinger <thomas@eizinger.io>
Date: Tue, 24 Feb 2026 15:22:24 +1100
Subject: [PATCH] refactor: use `html` module from `tauri-utils`

---
 Cargo.lock                                    |  2 --
 crates/tauri-cli/Cargo.toml                   |  2 --
 .../tauri-cli/src/dev/builtin_dev_server.rs   | 28 ++++---------------
 crates/tauri-utils/src/html.rs                | 22 +++++++++++++++
 4 files changed, 27 insertions(+), 27 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 8b199ae40008..394d6b0228d3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -8654,7 +8654,6 @@ dependencies = [
  "glob",
  "handlebars",
  "heck 0.5.0",
- "html5ever",
  "ignore",
  "image",
  "include_dir",
@@ -8667,7 +8666,6 @@ dependencies = [
  "jsonrpsee-core",
  "jsonrpsee-ws-client",
  "jsonschema",
- "kuchikiki",
  "libc",
  "local-ip-address",
  "log",
diff --git a/crates/tauri-cli/Cargo.toml b/crates/tauri-cli/Cargo.toml
index 25cef598ea34..a69c30e3c11b 100644
--- a/crates/tauri-cli/Cargo.toml
+++ b/crates/tauri-cli/Cargo.toml
@@ -87,8 +87,6 @@ env_logger = "0.11"
 icns = { package = "tauri-icns", version = "0.1" }
 image = { version = "0.25", default-features = false, features = ["ico"] }
 axum = { version = "0.8", features = ["ws"] }
-html5ever = "0.29"
-kuchiki = { package = "kuchikiki", version = "=0.8.8-speedreader" }
 tokio = { version = "1", features = ["macros", "sync"] }
 common-path = "1"
 serde-value = "0.7"
diff --git a/crates/tauri-cli/src/dev/builtin_dev_server.rs b/crates/tauri-cli/src/dev/builtin_dev_server.rs
index 1b49058ed224..0492bf408d8c 100644
--- a/crates/tauri-cli/src/dev/builtin_dev_server.rs
+++ b/crates/tauri-cli/src/dev/builtin_dev_server.rs
@@ -7,8 +7,6 @@ use axum::{
   http::{header, StatusCode, Uri},
   response::{IntoResponse, Response},
 };
-use html5ever::{namespace_url, ns, LocalName, QualName};
-use kuchiki::{traits::TendrilSink, NodeRef};
 use std::{
   net::{IpAddr, SocketAddr},
   path::{Path, PathBuf},
@@ -128,28 +126,12 @@ async fn ws_handler(ws: WebSocketUpgrade, state: State<ServerState>) -> Response
 }
 
 fn inject_address(html_bytes: Vec<u8>, address: &SocketAddr) -> Vec<u8> {
-  fn with_html_head<F: FnOnce(&NodeRef)>(document: &mut NodeRef, f: F) {
-    if let Ok(ref node) = document.select_first("head") {
-      f(node.as_node())
-    } else {
-      let node = NodeRef::new_element(
-        QualName::new(None, ns!(html), LocalName::from("head")),
-        None,
-      );
-      f(&node);
-      document.prepend(node)
-    }
-  }
+  let document = tauri_utils::html::parse(String::from_utf8_lossy(&html_bytes).into_owned());
 
-  let mut document = kuchiki::parse_html()
-    .one(String::from_utf8_lossy(&html_bytes).into_owned())
-    .document_node;
-  with_html_head(&mut document, |head| {
-    let script = RELOAD_SCRIPT.replace("{{reload_url}}", &format!("ws://{address}/__tauri_cli"));
-    let script_el = NodeRef::new_element(QualName::new(None, ns!(html), "script".into()), None);
-    script_el.append(NodeRef::new_text(script));
-    head.prepend(script_el);
-  });
+  tauri_utils::html::append_script_to_head(
+    &document,
+    &RELOAD_SCRIPT.replace("{{reload_url}}", &format!("ws://{address}/__tauri_cli")),
+  );
 
   tauri_utils::html::serialize_node(&document)
 }
diff --git a/crates/tauri-utils/src/html.rs b/crates/tauri-utils/src/html.rs
index 958ce597832f..2336d393a0dc 100644
--- a/crates/tauri-utils/src/html.rs
+++ b/crates/tauri-utils/src/html.rs
@@ -164,6 +164,15 @@ pub fn inject_csp(document: &NodeRef, csp: &str) {
   });
 }
 
+/// Injects a content security policy to the HTML.
+pub fn append_script_to_head(document: &NodeRef, script: &str) {
+  with_head(document, |head| {
+    let script_el = NodeRef::new_element(QualName::new(None, ns!(html), "script".into()), None);
+    script_el.append(NodeRef::new_text(script));
+    head.prepend(script_el);
+  });
+}
+
 fn create_csp_meta_tag(csp: &str) -> NodeRef {
   NodeRef::new_element(
     QualName::new(None, ns!(html), LocalName::from("meta")),
@@ -344,4 +353,17 @@ mod tests {
       expected.as_bytes()
     )
   }
+
+  #[test]
+  fn append_script_to_head_test() {
+    let html = r#"<html><head></head><body></body></html>"#;
+
+    let document = super::parse(html.to_string());
+    super::append_script_to_head(&document, r#"console.log('Test')"#);
+
+    assert_eq!(
+      String::from_utf8(super::serialize_node(&document)).unwrap(),
+      format!(r#"<html><head><script>console.log('Test')</script></head><body></body></html>"#)
+    );
+  }
 }