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codesandbox
Sandpack bundler incorrectly transpiles destructuring syntax with a default expression in an `export` declaration
Bug report
Packages affected
- [ ] sandpack-client
- [ ] sandpack-react
- [x] sandpack bundler - let me know if this issue should be moved elsewhere :)
Description of the problem
When running a Codesandbox in the browser using the Sandpack bundler, the library optimism is incorrectly transpiled (reproducible at version 0.17.2), resulting in the TypeError (0 , $csb___helpers_js.toArray) is not a function.
The source in optimism/lib/helpers.js is using destructuring syntax with a default expression in an export declaration; I cannot reproduce the issue when running the app locally with Webpack.
What were you doing when the problem occurred?
Creating a Codesandbox using @apollo/[email protected] which has a dependency on [email protected].
What steps can we take to reproduce the problem?
Open the linked sandbox to view the error. If you open the Chrome devtools, view the Sources tab, hit command + P to search/otherwise pull up the file optimism/lib/helpers.js, you'll see that toArray is never added as a property on exports.
If you download the sandbox as a zip and npm i && npm start, you'll notice the error doesn't happen when bundled with Webpack.
Link to sandbox: link
GitHub repository for the Codesandbox mirror: link
Your Environment
| Software | Name/Version |
|---|---|
| Sandpack-client version | |
| Sandpack-react version | |
| Browser | Chrome |
| Operating System | MacOS |
