Fixing Frontend Notice Errors That Appear Only While a Manager Is Logged In

If the public site breaks only while you are logged into the manager, the problem usually lives in a manager-aware branch of the runtime rather than in ordinary public rendering.

A frustrating class of bugs appears when the public site works for visitors, but the moment an administrator logs into the manager and previews the frontend, notice-level errors start showing up. This usually means the code path changes when a manager session is present.

What this usually points to

manager-specific conditionals leaking into public rendering
backend helper code loaded too broadly
a patched manager build that fixed one area but not another related branch

The best first step is to compare the request flow with and without an active manager session. If the bug only exists for authenticated managers, treat it as a session-aware branching problem, not a generic frontend template issue.

Newer post

Fixing File Manager Paths That Resolve to undefined/files Instead of assets/files

How to debug broken manager file paths when non-admin users see undefined file manager roots after an update.

Older post

Keeping YAMS and Shopkeeper Working Together on Uncached Pages

Why multilingual Shopkeeper pages can behave differently before cache warmup and what to check when the cart disappears on alternate languages.