From 2037fe8964cfe033a0f8c5d215cd2cb1add8764a Mon Sep 17 00:00:00 2001
From: Ingvar Stepanyan <rreverser@google.com>
Date: Tue, 1 Jun 2021 15:15:09 +0000
Subject: [PATCH] Add an error for unsupported usage of `new URL`

---
 rollup.config.js | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/rollup.config.js b/rollup.config.js
index 815c65ad..394b4277 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -33,11 +33,23 @@ import initialCssPlugin from './lib/initial-css-plugin';
 import serviceWorkerPlugin from './lib/sw-plugin';
 import dataURLPlugin from './lib/data-url-plugin';
 import entryDataPlugin, { fileNameToURL } from './lib/entry-data-plugin';
+import dedent from 'dedent';
 
 function resolveFileUrl({ fileName }) {
   return JSON.stringify(fileNameToURL(fileName));
 }
 
+function resolveImportMetaUrlInStaticBuild(property, { moduleId }) {
+  if (property !== 'url') return;
+  throw new Error(dedent`
+    Attempted to use a \`new URL(..., import.meta.url)\` pattern in ${path.relative(
+      process.cwd(),
+      moduleId,
+    )} for URL that needs to end up in static HTML.
+    This is currently unsupported.
+  `);
+}
+
 const dir = '.tmp/build';
 const staticPath = 'static/c/[name]-[hash][extname]';
 const jsPath = staticPath.replace('[extname]', '.js');
@@ -100,7 +112,7 @@ export default async function ({ watch }) {
     },
     preserveModules: true,
     plugins: [
-      { resolveFileUrl },
+      { resolveFileUrl, resolveImportMeta: resolveImportMetaUrlInStaticBuild },
       clientBundlePlugin(
         {
           external: ['worker_threads'],