fix: dont insert polyfills in cjs #303

Author: wdavidw

demo/issues-cjs/303.csv

@@ -0,0 +1,13 @@
+
+const {parse} = require('csv-parse');
+const fs = require('fs');
+
+// fs.createReadStream('./303.csv').pipe(parse()).on('data', data => {
+//     console.log(data);
+// });
+fs.createReadStream('./303.csv').pipe(parse())
+.on('readable', function(){
+  let record;while ((record = this.read()) !== null) {
+    // console.log(record);
+  }
+});

demo/issues-cjs/303.js

@@ -0,0 +1,26 @@
+{
+  "name": "csv_issues_cjs",
+  "version": "0.0.0",
+  "main": "index.js",
+  "license": "MIT",
+  "private": true,
+  "devDependencies": {
+    "coffeescript": "^2.6.1",
+    "mocha": "^9.1.3",
+    "should": "^13.2.3"
+  },
+  "mocha": {
+    "inline-diffs": true,
+    "loader": "./test/loaders/all.mjs",
+    "recursive": true,
+    "reporter": "spec",
+    "require": [
+      "should"
+    ],
+    "throw-deprecation": true,
+    "timeout": 40000
+  },
+  "scripts": {
+    "test": "mocha 'test/**/*.coffee'"
+  }
+}

demo/issues-cjs/package.json

@@ -1,5 +1,5 @@
 {
-  "name": "csv_demo_cjs",
+  "name": "csv_issues_esm",
   "version": "0.0.0",
   "main": "index.js",
   "license": "MIT",