Fixed an issue with process references not being removed correctly …

…from the `@xstate/react` UMD bundles (#1756)

* 'rollup-replace' replaces process.env.NODE_ENV declarations.

* rollup-replace is a dependency.

* 'rollup-replace' replaces process.env.NODE_ENV declarations.

* Use the same version of rollup-plugin-replace across the repo

* tweak changeset

Co-authored-by: Mateusz Burzyński <mateuszburzynski@gmail.com>

.changeset/pretty-hotels-rush.md

@@ -0,0 +1,5 @@
+---
+'@xstate/react': patch
+---
+
+Fixed an issue with `process` references not being removed correctly from the UMD bundles.

packages/xstate-react/package.json

@@ -73,6 +73,7 @@
     "react": "^16.12.0",
     "react-dom": "^16.12.0",
     "rollup": "^1.26.3",
+    "rollup-plugin-replace": "^2.2.0",
     "rollup-plugin-terser": "^5.1.2",
     "rollup-plugin-typescript2": "^0.25.2",
     "ts-jest": "^26.4.0",

packages/xstate-react/rollup.config.js

@@ -1,5 +1,6 @@
 import { terser } from 'rollup-plugin-terser';
 import typescript from 'rollup-plugin-typescript2';
+import replace from 'rollup-plugin-replace';
 
 function createTSCofig() {
   return typescript({
@@ -23,7 +24,13 @@ function createUmdConfig({ input, output: file, name }) {
         '@xstate/react': 'XStateReact'
       }
     },
-    plugins: [createTSCofig(), terser({ include: [/^.+\.min\.js$/] })]
+    plugins: [
+      replace({
+        'process.env.NODE_ENV': JSON.stringify('production')
+      }),
+      createTSCofig(),
+      terser({ include: [/^.+\.min\.js$/] })
+    ]
   };
 }