Hi! I understand you're having trouble with the Rork app preview and that the QR code isn't generating. Let's get this sorted out together.

To start, could you please tell me:

1. Are you trying to preview your app through the browser or the Rork desktop interface?
2. Have you noticed any error messages when attempting to generate the QR code?
3. Is your internet connection stable and active during this process?
4. Have you recently updated Rork or any related software?

While I wait for your answers, some common reasons for QR code generation issues include:

- Network interruptions that prevent the preview server from running properly.
- Cache or browser issues that interfere with the rendering of the QR code.
- Potential missing dependencies if you’re running the development environment locally.

Here is a step-by-step approach you can try meanwhile:

1. Refresh the page or restart the Rork app interface you are using to preview.
2. Clear your browser cache or try a different browser to see if the QR code appears.
3. Ensure your device and desktop/laptop are on the same network if you’re scanning the QR code from a mobile device.
4. Check your firewall or antivirus settings; sometimes they block required connections for the preview and QR code generation.
5. If you are running the app locally, make sure your development server is running without errors.

If the QR code still doesn't generate, please let me know if you have access to the app logs or errors shown in the developer console. That information will help me dig deeper with you.

Are you currently running this on your Windows 10 machine? Any other details about the setup will be very helpful.

I am using Rork on desktop. Im using Windows 11. Initially, the preview worked, but suddenly the qr code dissapeared and it is constantly loading. I tried to refresh the preview, but it is disconnected(at least that is what appears in the preview)

Thank you for those details! Since the preview initially worked and now the QR code just keeps loading with a "disconnected" message in the preview on Windows 11, it points toward a connectivity or session issue between your Rork desktop app's preview module and the local server or network.

Let's try the following targeted steps to resolve that:

1. Restart Rork and Your PC
Fully close the Rork desktop app, then restart your Windows 11 machine. Sometimes a simple reboot resets network states and clears lingering temporary issues.

2. Check Local Server Status
Since preview depends on a local development server running, please check if that server is still active and without errors. Usually, Rork shows logs or a small console window—make sure no errors are popping up indicating the preview server stopped.

3. Confirm Firewall/Antivirus Settings
On Windows 11, firewall or antivirus programs can block local ports or inter-process communications. Temporarily disable firewall/antivirus or add exceptions for Rork and its local server ports (often in the 3000-5000 range). Then try preview again.

4. Clear Cache and Configuration
Sometimes preview-related cache or temp files get corrupted:
- Close Rork
- Find and clear cache or temp folders related to Rork in your user profile (this location varies; if needed I can guide on where to look)
- Restart Rork and try preview again.

5. Check Network Adapter Settings
Make sure your network adapter is enabled and you are connected to the internet via a stable network. Disable any VPN temporarily as it might interfere with local connections.

6. Look for Application or System Updates
Verify Rork and Windows 11 have no pending updates. Sometimes bugs in the app or OS affect functions like QR code generation and preview.

If these steps do not resolve the issue, please let me know if you see any error messages in Rork’s developer console or logs—this info can help diagnose further. Also, confirm if the QR code loading completely halts or if anything else appears after a long time.

Does this approach sound good to you? Would you like assistance with any specific step?

Are you satisfied with the solution I provided so far?

The preview of the app is not working. The qr code isnt being generated

Thanks for your patience! Based on what you described and what I found, it seems your Rork preview’s QR code generation might be affected by issues with the local preview server or network connection that serves the code to your app.

Here’s a focused step-by-step to try:

1. Restart Rork and Your Machine
Close the Rork desktop app fully, then reboot your Windows 11 PC. This often resolves temporary connection glitches affecting the preview server.

2. Check Local Preview Server Status
Rork generates the QR code by running a local server (often through Expo Go integration). Look for any error messages or warnings in the app or developer console indicating that the server isn’t running or is disconnected.

3. Verify Network Connection and Firewall
Since the preview relies on network communication between your machine and the QR code generator, make sure your firewall or antivirus isn’t blocking Rork or port connections (commonly ports 19000–19002 for Expo-related servers). Temporarily disable these protections to test.

4. Clear Cache or Temporary Data
Corrupted cache or temp files can halt loading. Close Rork, clear its cache (usually from app settings or local user files), then restart and try preview again.

5. Try Another Browser or Device for Scanning
If you scan with your phone, ensure both devices (Windows PC and phone) are on the same Wi-Fi. Also, try scanning with another device or viewing the preview in a different browser.

6. Look for Updates
Make sure you are running the latest Rork version and Windows updates as fixes for preview or QR code issues may be included.

If these don’t help, you can also check Rork’s official FAQ or troubleshooting forums where QR code and preview issues are sometimes discussed1 3.

Do you currently see any error messages or logs that mention disconnection or server failure? That info would help me guide you further.

Are you satisfied with the solution I provided so far?

I noticed that the preview successfully worked in a chromium based browser, while in firefox didnt work. Could that be the root cause of the issue?

Thanks for sharing that important detail! Yes, the fact that the Rork app preview and QR code generation work in Chromium-based browsers but not in Firefox can definitely be the root cause of your issue. This kind of behavior often happens because certain web technologies, browser APIs, or security settings are implemented differently or more restrictively in Firefox compared to Chromium browsers like Chrome or Edge.

Here’s why this could be happening and what you can do:

1. Browser Compatibility Differences:
Some JavaScript features, especially in frameworks used by Rork (React, Expo, etc.), might run differently or have limited support in Firefox. This can cause previews or QR code renderings to fail or stall there.

2. Privacy and Security Settings in Firefox:
Firefox has stronger default privacy protections, which might block some scripts, cookies, or local network calls required to generate the preview or QR code. This includes things like "Enhanced Tracking Protection" or strict CORS (Cross-Origin Resource Sharing) policies.

3. Browser Extensions or Add-ons:
Some Firefox add-ons (ad blockers, privacy tools) may interfere with network requests or script execution necessary for Rork preview to work.

### What you can do to fix it:

- Try disabling privacy/tracking protections temporarily on the Rork preview page in Firefox:
Click the shield icon near the URL bar and toggle off protections for that page to see if it resolves the loading issue.

- Run Firefox in Safe Mode (without extensions enabled) to rule out add-on interference.

- Check and enable necessary permissions for local network access that Rork might need.

- Use the Chromium-based browser for previewing and QR scanning as a practical workaround, since you’ve confirmed it works well there.

- Keep Firefox updated and report this compatibility issue to the Rork support team so they can investigate specific fixes.

For further context, this kind of browser-specific preview behavior is noted in many web app development communities, where apps run fine in Chromium browsers but face challenges in Firefox due to different API implementations or stricter security defaults1 3 4.

Would you like me to guide you through disabling protections on Firefox to test this, or help set up Chromium as your default for Rork preview?

Are you satisfied with the solution I provided so far?

The preview of the app is not working. The qr code isnt being generated