fix: ensure es2020 compat

Author: logaretm

dev-packages/rollup-utils/bundleHelpers.mjs

@@ -104,6 +104,11 @@ export function makeBaseBundleConfig(options) {
     // Point to the package's tsconfig.json so rolldown respects TypeScript & JSX settings
     tsconfig: path.resolve(process.cwd(), './tsconfig.json'),
 
+    // Enforce ES2020 target for all builds
+    transform: {
+      target: 'es2020',
+    },
+
     output: {
       // a file extension will be added to this base value when we specify either a minified or non-minified build
       entryFileNames: outputFileBase,

dev-packages/rollup-utils/npmHelpers.mjs

@@ -92,6 +92,11 @@ export function makeBaseNPMConfig(options = {}) {
       },
     },
 
+    // Enforce ES2020 target for all builds
+    transform: {
+      target: 'es2020',
+    },
+
     plugins: [debugBuildStatementReplacePlugin, rrwebBuildPlugin],
 
     // don't include imported modules from outside the package in the final output

packages/replay-worker/rollup.worker.config.mjs

@@ -24,6 +24,9 @@ const config = defineConfig([
       minify: true,
     },
     treeshake: treeShakePreset('smallest'),
+    transform: {
+      target: 'es2020',
+    },
     plugins: [
       {
         name: 'worker-to-string',
@@ -42,6 +45,9 @@ const config = defineConfig([
       minify: true,
     },
     treeshake: treeShakePreset('smallest'),
+    transform: {
+      target: 'es2020',
+    },
   },
 ]);