Merge pull request #31730 from storybookjs/restore-original-clipboard

Core: Restore original clipboard after invoking `userEvent.setup()`
(cherry picked from commit 4d2a896)

Author: ghengeveld

code/core/src/test/preview.ts

@@ -92,12 +92,19 @@ const enhanceContext: LoaderFunction = async (context) => {
 
   // userEvent.setup() cannot be called in non browser environment and will attempt to access window.navigator.clipboard
   // which will throw an error in react native for example.
-  if (globalThis.window?.navigator?.clipboard) {
+  const clipboard = globalThis.window?.navigator?.clipboard;
+  if (clipboard) {
     context.userEvent = instrument(
       { userEvent: uninstrumentedUserEvent.setup() },
       { intercept: true }
     ).userEvent;
 
+    // Restore original clipboard, which was replaced with a stub by userEvent.setup()
+    Object.defineProperty(globalThis.window.navigator, 'clipboard', {
+      get: () => clipboard,
+      configurable: true,
+    });
+
     let currentFocus = HTMLElement.prototype.focus;
 
     if (!patchedFocus) {