[lexical] Bug Fix: Handle MutationObserver/input event re-ordering when using contentEditable inside of an iframe (#7045)

examples/vanilla-js-iframe/vite.monorepo.config.ts

@@ -0,0 +1,80 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ */
+
+import babel from '@rollup/plugin-babel';
+import {createRequire} from 'node:module';
+import {defineConfig} from 'vite';
+import {replaceCodePlugin} from 'vite-plugin-replace';
+
+import moduleResolution from '../../packages/shared/viteModuleResolution';
+
+const require = createRequire(import.meta.url);
+
+// https://vitejs.dev/config/
+export default defineConfig(({command}) => {
+  return {
+    build: {
+      outDir: 'build',
+      rollupOptions: {
+        input: {
+          main: new URL('./index.html', import.meta.url).pathname,
+          split: new URL('./split/index.html', import.meta.url).pathname,
+        },
+        onwarn(warning, warn) {
+          if (
+            warning.code === 'EVAL' &&
+            warning.id &&
+            /[\\/]node_modules[\\/]@excalidraw\/excalidraw[\\/]/.test(
+              warning.id,
+            )
+          ) {
+            return;
+          }
+          warn(warning);
+        },
+      },
+    },
+    define: {
+      'process.env.IS_PREACT': process.env.IS_PREACT,
+    },
+    plugins: [
+      replaceCodePlugin({
+        replacements: [
+          {
+            from: /__DEV__/g,
+            to: 'true',
+          },
+          {
+            from: 'process.env.LEXICAL_VERSION',
+            to: JSON.stringify(`${process.env.npm_package_version}+git`),
+          },
+        ],
+      }),
+      babel({
+        babelHelpers: 'bundled',
+        babelrc: false,
+        configFile: false,
+        exclude: '/**/node_modules/**',
+        extensions: ['jsx', 'js', 'ts', 'tsx', 'mjs'],
+        plugins: [
+          '@babel/plugin-transform-flow-strip-types',
+          [
+            require('../../scripts/error-codes/transform-error-messages'),
+            {
+              noMinify: true,
+            },
+          ],
+        ],
+        presets: [['@babel/preset-react', {runtime: 'automatic'}]],
+      }),
+    ],
+    resolve: {
+      alias: moduleResolution(command === 'serve' ? 'source' : 'development'),
+    },
+  };
+});