FAQs and troubleshooting
Find answers to common questions about code components, from setup to troubleshooting.
Getting started
How do I create my first code component?
See the getting started guide for detailed steps.
Which frameworks can I use?
Imported components support React with TypeScript. You can use:
- React hooks and functional components
- TypeScript for type safety
- Popular React libraries (with some limitations)
- CSS-in-JS solutions (with configuration)
Development and styling
Why can't I see my component styles?
Code components render in Shadow DOM, which isolates styles. Common issues:
- Site classes don’t work - Use component-specific CSS classes
- CSS-in-JS libraries need configuration - See bundling guide
How do I use my site variables?
Reference site variables in your component CSS:
Get the exact variable name from the Variables panel in Webflow Designer.
Can I use external APIs in my components?
Yes, but with important limitations:
- Client-side requests only - All API requests are executed in the browser
- Public APIs only - Don’t include auth tokens or secrets
- CORS considerations - APIs must allow cross-origin requests
Example of safe API usage:
Imports and updates
How do I update a component in my library?
- Make your changes locally
- Run
npx webflow library shareto deploy - The updated component replaces the previous version
Note: You can’t update individual components - the entire library is deployed as one unit.
Can I test components locally before importing?
Yes, use the local bundling feature:
This creates a dist folder you can serve locally for testing.
How do I handle component versioning?
Currently, code components don’t support versioning. Each import replaces the previous version. Consider:
- Using Git for version control
- Testing thoroughly before import
- Keeping import logs for rollback reference
Troubleshooting
My component isn't rendering
Check these common issues:
- Build errors - Check your terminal for compilation errors
- Missing dependencies - Ensure all imports are available
- Bundle size - Keep under 50MB limit
- Single root element - Components must have one root element (no fragments)
Styles aren't applying correctly
Shadow DOM limitations can cause styling issues:
- Site classes - Use component-specific classes instead
- CSS-in-JS - Configure for Shadow DOM (see bundling guide)
- Inheritance - Use
inheritvalues for cross-boundary styling
Component state isn't persisting
Each code component runs in its own React root, so:
- React Context doesn’t work across components
- Redux/global state isn’t shared between components
- Use alternatives like URL parameters,
localStorage, or external state management
Learn more about component architecture and state management when building React components for import into Webflow.
Library import fails
Common import issues:
- Authentication - Ensure your Workspace token is valid in your
.envfile - Bundle size - Check if you’re under the 50MB limit
- Build errors - Fix any compilation issues first
- Network issues - Check your internet connection
Performance and limitations
What's the bundle size limit?
Maximum bundle size is 50MB. To optimize:
- Use tree shaking
- Minimize dependencies
- Remove unused code
- Optimize images and assets
Can I use third-party libraries?
Most React libraries work, but some have limitations:
- Multiple entry points - Libraries with ESM + CJS may not work
- Style injection - CSS-in-JS libraries need Shadow DOM configuration
- Global dependencies - Libraries that modify
windowordocumentmay conflict
Learn more about styling components when building React components for import into Webflow.
Advanced topics
How do I debug my components?
- Browser developer tools - Inspect the Shadow DOM
- Console logging - Add
console.logstatements - Local bundling - Use
--devflag for better error messages - Source maps - Enable for easier debugging
Can I use TypeScript?
Yes, TypeScript is fully supported. Use .tsx files for your components and configure tsconfig.json for your project.
How do I handle responsive design?
Use standard CSS media queries within your component:
Can I use animations and transitions?
Yes, CSS animations and transitions work normally within the Shadow DOM boundary. Use standard CSS animation properties and @keyframes.