diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 221af2a..ded9737 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,7 +29,13 @@ jobs:
         if: runner.os == 'Linux'
         run: |
           sudo apt-get update
-          sudo apt-get install -y --no-install-recommends libssl-dev pkg-config
+          sudo apt-get install -y --no-install-recommends libssl-dev pkg-config libglib2.0-dev libgtk-3-dev libwebkit2gtk-4.1-dev libappindicator3-dev librsvg2-dev libsoup-3.0-dev
+
+      - name: Install LLVM (macOS)
+        if: runner.os == 'macOS'
+        run: brew install llvm
 
       - name: Run tests
+        env:
+          LIBCLANG_PATH: ${{ runner.os == 'macOS' && '/opt/homebrew/opt/llvm/lib' || '' }}
         run: cargo test --all-features
diff --git a/crates/pardus-core/src/js/bootstrap.js b/crates/pardus-core/src/js/bootstrap.js
index 36a02e1..b79c1ce 100644
--- a/crates/pardus-core/src/js/bootstrap.js
+++ b/crates/pardus-core/src/js/bootstrap.js
@@ -335,8 +335,40 @@ class Element {
       contains(token) {
         return self.className.split(/\s+/).includes(token);
       },
+      replace(oldToken, newToken) {
+        const current = self.className.split(/\s+/).filter(s => s);
+        const idx = current.indexOf(oldToken);
+        if (idx < 0) return false;
+        current[idx] = newToken;
+        self.className = current.join(' ');
+        return true;
+      },
+      item(index) {
+        const current = self.className.split(/\s+/).filter(s => s);
+        return current[index] || null;
+      },
+      forEach(callback, thisArg) {
+        const current = self.className.split(/\s+/).filter(s => s);
+        current.forEach(callback, thisArg);
+      },
+      toString() {
+        return self.className;
+      },
       get length() {
         return self.className.split(/\s+/).filter(s => s).length;
+      },
+      [Symbol.iterator]() {
+        const current = self.className.split(/\s+/).filter(s => s);
+        return current[Symbol.iterator]();
+      },
+      values() {
+        return self.className.split(/\s+/).filter(s => s).values();
+      },
+      keys() {
+        return self.className.split(/\s+/).filter(s => s).keys();
+      },
+      entries() {
+        return self.className.split(/\s+/).filter(s => s).entries();
       }
     };
   }
diff --git a/crates/pardus-core/src/js/bootstrap_readonly.js b/crates/pardus-core/src/js/bootstrap_readonly.js
index 5da9f37..ce98afb 100644
--- a/crates/pardus-core/src/js/bootstrap_readonly.js
+++ b/crates/pardus-core/src/js/bootstrap_readonly.js
@@ -120,6 +120,9 @@ class Element {
     const self = this;
     return {
       add() {}, remove() {}, toggle() { return false; }, contains(c) { return self.className.split(" ").includes(c); },
+      replace() { return false; }, item(i) { return null; }, forEach() {}, toString() { return self.className; },
+      values() { return [].values(); }, keys() { return [].keys(); }, entries() { return [].entries(); },
+      [Symbol.iterator]() { return [][Symbol.iterator](); },
       get length() { return self.className.split(" ").filter(Boolean).length; },
     };
   }