Why is my checkout button not responding on both mobile, incognito, and desktop?

Topic summary

A store owner reported their checkout button was completely unresponsive across all devices and browsers, preventing customers from completing purchases.

Root Cause Identified:

  • A JavaScript error was blocking the checkout button from functioning
  • The error originated from a third-party script hosted at preorder-now.herokuapp.com
  • The problematic code appeared to be related to a pre-order feature that checks stock availability

Solution Steps:

  • The script was likely added via an app or in the theme.liquid file
  • Recommendation was to locate and remove the script import to restore checkout functionality
  • The pre-order feature would need proper fixing later, but immediate removal was necessary to unblock sales

Outcome:

  • Original poster confirmed the issue was resolved after removing the problematic code

Related Issues:

  • Two additional users reported similar checkout problems:
    • One experiencing payment completion failures with credit/debit cards
    • Another seeking help with a non-functional checkout button

These newer reports may indicate separate issues requiring individual diagnosis.

Summarized with AI on November 2. AI used: claude-sonnet-4-5-20250929.

Do you happen to know where the code is at and where I can find it?