diff --git a/src/index-lite.js b/src/index-lite.js
index 10c000c..bd47e9e 100644
--- a/src/index-lite.js
+++ b/src/index-lite.js
@@ -12,18 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import {
-  ScrollTimeline,
-  ViewTimeline,
-} from "./scroll-timeline-base";
-import {
-  animate,
-  elementGetAnimations,
-  documentGetAnimations,
-  ProxyAnimation
-} from "./proxy-animation.js";
-
-
 import { initPolyfill } from "./init-polyfill.js"
 
 initPolyfill();
diff --git a/src/init-polyfill.js b/src/init-polyfill.js
index 1136770..e3dd471 100644
--- a/src/init-polyfill.js
+++ b/src/init-polyfill.js
@@ -27,7 +27,7 @@ import { initCSSPolyfill } from "./scroll-timeline-css"
 
 export function initPolyfill() {
   // Don't load if browser claims support
-  if (CSS.supports("view-timeline")) {
+  if (window.ViewTimeline !== undefined) {
     return true;
   }
 
diff --git a/src/scroll-timeline-css.js b/src/scroll-timeline-css.js
index c38bb38..5d3d0b0 100644
--- a/src/scroll-timeline-css.js
+++ b/src/scroll-timeline-css.js
@@ -154,7 +154,7 @@ function updateKeyframesIfNecessary(anim, options) {
 
 export function initCSSPolyfill() {
   // Don't load if browser claims support
-  if (CSS.supports("view-timeline")) {
+  if (CSS.supports("animation-timeline: --works")) {
     return true;
   }
 
diff --git a/vite.config.common.js b/vite.config.common.js
new file mode 100644
index 0000000..eb842fc
--- /dev/null
+++ b/vite.config.common.js
@@ -0,0 +1,28 @@
+export function buildConfig(source, filename) {
+    return {
+        build: {
+            sourcemap: true,
+            emptyOutDir: false,
+            lib: {
+            // Could also be a dictionary or array of multiple entry points
+            entry: source,
+            name: 'ScrollTimeline',
+            // the proper extensions will be added
+            fileName: (format, entryAlias) => `${filename}${format=='iife'?'':'-' + format}.js`,
+            formats: ['iife'],
+            },
+            minify: 'terser',
+            terserOptions: {
+            keep_classnames: /^((View|Scroll)Timeline)|CSS.*$/
+            },
+            rollupOptions: {
+            output: {
+                // Provide global variables to use in the UMD build
+                // for externalized deps
+                globals: {
+                },
+            },
+            }
+        }
+    };
+}
\ No newline at end of file
diff --git a/vite.config.js b/vite.config.js
index 6a27226..b6c8644 100644
--- a/vite.config.js
+++ b/vite.config.js
@@ -1,28 +1,5 @@
 import { resolve } from 'path'
 import { defineConfig } from 'vite'
+import { buildConfig } from './vite.config.common'
 
-export default defineConfig({
-  build: {
-    sourcemap: true,
-    lib: {
-      // Could also be a dictionary or array of multiple entry points
-      entry: resolve(__dirname, 'src/index.js'),
-      name: 'ScrollTimeline',
-      // the proper extensions will be added
-      fileName: (format, entryAlias) => `scroll-timeline${format=='iife'?'':'-' + format}.js`,
-      formats: ['iife'],
-    },
-    minify: 'terser',
-    terserOptions: {
-      keep_classnames: /^((View|Scroll)Timeline)|CSS.*$/
-    },
-    rollupOptions: {
-      output: {
-        // Provide global variables to use in the UMD build
-        // for externalized deps
-        globals: {
-        },
-      },
-    }
-  },
-})
+export default defineConfig(buildConfig(resolve(__dirname, 'src/index.js'), 'scroll-timeline'));
\ No newline at end of file
diff --git a/vite.config.lite.js b/vite.config.lite.js
index e41e541..31f5e11 100644
--- a/vite.config.lite.js
+++ b/vite.config.lite.js
@@ -1,29 +1,5 @@
 import { resolve } from 'path'
 import { defineConfig } from 'vite'
+import { buildConfig } from './vite.config.common'
 
-export default defineConfig({
-  build: {
-    sourcemap: true,
-    outDir: 'dist-lite',
-    lib: {
-      // Could also be a dictionary or array of multiple entry points
-      entry: resolve(__dirname, 'src/index-lite.js'),
-      name: 'ScrollTimelineLite',
-      // the proper extensions will be added
-      fileName: (format, entryAlias) => `scroll-timeline-lite${format=='iife'?'':'-' + format}.js`,
-      formats: ['iife'],
-    },
-    minify: 'terser',
-    terserOptions: {
-      keep_classnames: /^((View|Scroll)Timeline)|CSS.*$/
-    },
-    rollupOptions: {
-      output: {
-        // Provide global variables to use in the UMD build
-        // for externalized deps
-        globals: {
-        },
-      },
-    }
-  },
-})
+export default defineConfig(buildConfig(resolve(__dirname, 'src/index-lite.js'), 'scroll-timeline-lite'));
\ No newline at end of file