Shopify embedded app stuck on argus.shopify.com registration during setup

I downloaded the Shopify embedded app template from GitHub and configured it with my API credentials. After going through the OAuth process successfully, I’m running into an issue when trying to access the app from the Shopify admin dashboard.

The problem is that when I click on my app in the admin panel, it should load the main page but instead it gets stuck trying to connect to:

wss://argus.shopify.com/820222/register?token=abc123&screen_sharing_support=true&user_name=Developer&guid=xyz789

This WebSocket connection just hangs and never completes. The app interface remains blank and doesn’t show any content. Has anyone encountered this registration issue before? What could be causing this connection to fail and how do I resolve it?

im having the same issues. make sure your interent is stable. if that fails, try clearing ur cache or switching browsers. some users say they got help from shopify support, could be worth a shot.

Had this exact problem about six months ago with a custom app deployment. The argus.shopify.com timeout happens when your app config doesn’t match what Shopify expects during embedded app setup. First, check your partner dashboard - make sure your app URL and redirect URLs are exactly what you’re using locally or in production. Also verify your App Bridge initialization is working properly. For me, the fix was making sure the shop domain parameter passed through OAuth correctly and my app responded to Shopify’s iframe communication. The WebSocket won’t connect until app registration succeeds, so any config mismatch will make it hang forever.

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