fix: NPM parsing shouldn't try loading Deno URL imports

node/bundler.test.ts

@@ -138,7 +138,10 @@ test('Prints a nice error message when user tries importing an npm module and np
   ]
 
   try {
-    await bundle([sourceDirectory], distPath, declarations, { basePath })
+    await bundle([sourceDirectory], distPath, declarations, {
+      basePath,
+      importMapPaths: [join(basePath, 'import_map.json')],
+    })
   } catch (error) {
     expect(error).toBeInstanceOf(BundleError)
     expect((error as BundleError).message).toEqual(

node/npm_dependencies.ts

@@ -53,6 +53,10 @@ export const getDependencyTrackerPlugin = (
       // If it does, the resolved import is the specifier we'll evaluate going
       // forward.
       if (matched) {
+        if (resolvedImport.protocol !== 'file:') {
+          return { external: true }
+        }
+
         specifier = fileURLToPath(resolvedImport).replace(/\\/g, '/')
 
         result.path = specifier

test/fixtures/imports_npm_module/functions/func1.ts

@@ -2,9 +2,12 @@ import parent1 from 'parent-1'
 import parent2 from 'parent-2'
 import parent3 from './lib/util.ts'
 import { echo } from 'alias:helper'
+import { HTMLRewriter } from 'html-rewriter'
 
 await Promise.resolve()
 
+new HTMLRewriter()
+
 export default async () => {
   const text = [parent1('JavaScript'), parent2('APIs'), parent3('Markup')].join(', ')
 

test/fixtures/imports_npm_module/import_map.json

@@ -1,5 +1,6 @@
 {
   "imports": {
-    "alias:helper": "./helper.ts"
+    "alias:helper": "./helper.ts",
+    "html-rewriter": "https://ghuc.cc/worker-tools/html-rewriter/index.ts"
   }
 }