Fix: the umd library is undefined

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 See [https://github.com/ice-lab/icestark/releases](https://github.com/ice-lab/icestark/releases) for what has changed in each version of icestark.
 
+# 2.8.2
+
+- [fix] fix the issue that the UMD library is overwritten by undefined value.
+
 # 2.8.1
 
 - [fix] support unique cache keys for JavaScript resources.

packages/icestark/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@ice/stark",
-  "version": "2.8.1",
+  "version": "2.8.2",
   "description": "Icestark is a JavaScript library for multiple projects, Ice workbench solution.",
   "scripts": {
     "build": "rm -rf lib && tsc",

packages/icestark/src/util/handleAssets.ts

@@ -332,7 +332,8 @@ export function fetchScripts(jsList: Asset[], fetch: Fetch = defaultFetch): Prom
               const globalLib = `window['${library}']`;
               const backupLib = `window['__${library}__']`;
               const versionedLib = `window['${library}@${version}']`;
-              return `;${backupLib} = ${globalLib};${text};${versionedLib} = ${globalLib};${globalLib} = ${backupLib};`;
+              return `;if (${globalLib}) {${backupLib} = ${globalLib};}
+${text}; ${versionedLib} = ${globalLib}; if (${backupLib}) {${globalLib} = ${backupLib};${backupLib} = undefined;}`;
             }
             return text;
           })