Remove CRA stuff, revert to custom webpack config

server/middleware/serveFile.js

@@ -31,7 +31,7 @@ function rewriteBareModuleIdentifiers(file, packageConfig, callback) {
 /**
  * Send the file, JSON metadata, or HTML directory listing.
  */
-function serveFile(req, res, next) {
+function serveFile(req, res) {
   if (req.query.meta != null) {
     // Serve JSON metadata.
     getMetadata(req.packageDir, req.filename, req.stats, MaximumDepth, (error, metadata) => {

server/middleware/utils/.eslintrc

@@ -0,0 +1,5 @@
+{
+  "env": {
+    "jest": true
+  }
+}

server/middleware/utils/__tests__/.eslintrc

@@ -0,0 +1,5 @@
+{
+  "env": {
+    "jest": true
+  }
+}

server/middleware/utils/getPackage.js

@@ -17,7 +17,7 @@ function stripNamePrefix(headers) {
   // so we shorten that to just "index.js" here. A few packages use a
   // prefix other than "package/". e.g. the firebase package uses the
   // "firebase_npm/" prefix. So we just strip the first dir name.
-  headers.name = headers.name.replace(/^[^\/]+\//, "")
+  headers.name = headers.name.replace(/^[^/]+\//, "")
   return headers
 }