chore: preserve dynamic import for remix-serve (#7173)

remix-run · Aug 15, 2023 · c114621 · c114621
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commit c114621
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diff --git a/.changeset/v2-serve-dynamic-import.md b/.changeset/v2-serve-dynamic-import.md
@@ -0,0 +1,5 @@
+---
+"@remix-run/serve": major
+---
+
+Preserve dynamic imports in remix-serve for external bundle
diff --git a/packages/remix-serve/rollup.config.js b/packages/remix-serve/rollup.config.js
@@ -38,6 +38,17 @@ module.exports = function rollup() {
           extensions: [".ts", ".tsx"],
         }),
         nodeResolve({ extensions: [".ts", ".tsx"] }),
+        // Allow dynamic imports in CJS code to allow us to utilize
+        // ESM modules as part of the compiler.
+        {
+          name: "dynamic-import-polyfill",
+          renderDynamicImport() {
+            return {
+              left: "import(",
+              right: ")",
+            };
+          },
+        },
         copy({
           targets: [
             { src: "LICENSE.md", dest: [outputDir, sourceDir] },