Embedded app shows a blank screen or "Example Domain"

When the Klyna Shopify app loads as a blank iframe or the page reads "Example Domain", the App Bridge handoff has failed. Here is how to fix it.

Updated June 10, 2026

A blank embedded iframe or the literal text “Example Domain” inside the Klyna panel almost always means App Bridge could not reach the app URL. The iframe falls back to example.com, which renders the IANA placeholder page.

Confirm the symptom

Right-click inside the blank area and choose Inspect. If the iframe src points to https://example.com or fails to load with a CSP error, this guide applies.

Fix 1 — re-authenticate the install

The session token may have expired.

  1. In Shopify admin, open Settings → Apps and sales channels.
  2. Click Klyna → Uninstall.
  3. Reinstall from the listing or from the install link in your welcome email.

Fix 2 — allow the app URL in your browser

Some privacy extensions (uBlock Origin, Privacy Badger) block third-party iframes inside admin.shopify.com. Allow klyna.dev and *.klyna.dev in the extension’s site settings.

Fix 3 — check Partner dashboard URLs

If you self-host the app, verify in Partners:

  • App URL is the public HTTPS URL of your server.
  • Allowed redirection URLs includes /auth/callback.

If either is set to https://example.com (the Partners default), the App Bridge handshake falls through to that placeholder.

Still stuck?

Contact us with your myshopify.com domain and a screenshot of the browser console. We can verify the install record from our side.

Still stuck? Open a support ticket →