fixes

lib/blocks/package.json

@@ -20,17 +20,25 @@
   },
   "license": "MIT",
   "sideEffects": false,
-  "main": "dist/cjs/index.js",
-  "module": "dist/esm/index.js",
-  "types": "dist/types/index.d.ts",
+  "exports": {
+    ".": {
+      "require": "./dist/index.js",
+      "import": "./dist/index.mjs",
+      "types": "./dist/index.d.ts"
+    },
+    "./package.json": "./package.json"
+  },
+  "main": "dist/index.js",
+  "module": "dist/index.mjs",
+  "types": "dist/index.d.ts",
   "files": [
     "dist/**/*",
     "README.md",
     "*.js",
     "*.d.ts"
   ],
   "scripts": {
-    "prepare": "node ../../scripts/prepare.js"
+    "prepare": "esrun ../../scripts/prepare/bundle.ts"
   },
   "dependencies": {
     "@mdx-js/react": "^1.6.22",
@@ -53,16 +61,21 @@
     "memoizerific": "^1.11.3",
     "polished": "^4.2.2",
     "react-colorful": "^5.1.2",
-    "regenerator-runtime": "^0.13.7",
     "ts-dedent": "^2.0.0",
     "util-deprecate": "^1.0.2"
   },
+  "devDependencies": {
+    "@digitak/esrun": "^3.2.2"
+  },
   "peerDependencies": {
     "react": "^16.8.0 || ^17.0.0 || ^18.0.0",
     "react-dom": "^16.8.0 || ^17.0.0 || ^18.0.0"
   },
   "publishConfig": {
     "access": "public"
   },
+  "bundlerEntrypoint": [
+    "./src/index.ts"
+  ],
   "gitHead": "b2e85f3599c043815b18bbfc5ca563bf1c6e4add"
 }

lib/manager-webpack5/package.json

@@ -46,6 +46,7 @@
     "@storybook/theming": "7.0.0-alpha.7",
     "@storybook/ui": "7.0.0-alpha.7",
     "@types/node": "^14.0.10 || ^16.0.0",
+    "assert": "^2.0.0",
     "babel-loader": "^8.2.5",
     "case-sensitive-paths-webpack-plugin": "^2.4.0",
     "chalk": "^4.1.0",

lib/manager-webpack5/src/presets/manager-preset.ts

@@ -116,6 +116,16 @@ export async function managerWebpack(
     ].filter(Boolean),
     module: {
       rules: [
+        {
+          test: /\.m?js$/,
+          type: 'javascript/auto',
+        },
+        {
+          test: /\.m?js$/,
+          resolve: {
+            fullySpecified: false,
+          },
+        },
         customManagerRuntimeLoader(),
         {
           test: /\.css$/,
@@ -159,6 +169,7 @@ export async function managerWebpack(
       modules: ['node_modules'].concat(envs.NODE_PATH || []),
       mainFields: ['browser', 'module', 'main'].filter(Boolean),
       alias: uiPaths,
+      fallback: { assert: require.resolve('assert/') },
     },
     recordsPath: resolvePathInStorybookCache('public/records.json'),
     performance: {

package.json

@@ -244,7 +244,6 @@
     "@typescript-eslint/eslint-plugin": "^5.15.0",
     "@typescript-eslint/experimental-utils": "^5.20.0",
     "@typescript-eslint/parser": "^5.15.0",
-    "assert": "^2.0.0",
     "babel-core": "^7.0.0-bridge.0",
     "babel-eslint": "^10.1.0",
     "babel-jest": "^26.6.3",

scripts/build-manager-config/main.js

@@ -5,9 +5,4 @@ module.exports = {
     builder: '@storybook/builder-webpack5',
     disableTelemetry: true,
   },
-  managerWebpack: async (config) => {
-    // eslint-disable-next-line no-param-reassign
-    config.resolve.fallback = { assert: require.resolve('assert/') };
-    return config;
-  },
 };

yarn.lock

@@ -7780,6 +7780,7 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@storybook/blocks@workspace:lib/blocks"
   dependencies:
+    "@digitak/esrun": ^3.2.2
     "@mdx-js/react": ^1.6.22
     "@storybook/addons": 7.0.0-alpha.7
     "@storybook/api": 7.0.0-alpha.7
@@ -7800,7 +7801,6 @@ __metadata:
     memoizerific: ^1.11.3
     polished: ^4.2.2
     react-colorful: ^5.1.2
-    regenerator-runtime: ^0.13.7
     ts-dedent: ^2.0.0
     util-deprecate: ^1.0.2
   peerDependencies:
@@ -8727,6 +8727,7 @@ __metadata:
     "@types/terser-webpack-plugin": ^5.2.0
     "@types/webpack-dev-middleware": ^5.3.0
     "@types/webpack-virtual-modules": ^0.1.1
+    assert: ^2.0.0
     babel-loader: ^8.2.5
     case-sensitive-paths-webpack-plugin: ^2.4.0
     chalk: ^4.1.0
@@ -9323,7 +9324,6 @@ __metadata:
     "@typescript-eslint/eslint-plugin": ^5.15.0
     "@typescript-eslint/experimental-utils": ^5.20.0
     "@typescript-eslint/parser": ^5.15.0
-    assert: ^2.0.0
     babel-core: ^7.0.0-bridge.0
     babel-eslint: ^10.1.0
     babel-jest: ^26.6.3