Pagination off by one Debugging Lab

Pagination off by oneHTTP/APIEasyPreparing

00:00

Incident Dossier

Pagination off by one

Users report that when they fetch the first page of results, the most recent items are missing. Page 1 seems to behave like Page 2.

Initial failing signalhidden.test.mjs fails on page 1 itemsExpected [10, 20] · received [30, 40]

Progress

1Reproduce the bugRun checks

2Edit the fixOpen

3Pass checksOpen

4Submit fixOpen

Reproduction Steps

Focus Mode

Start

Likely area

Challenge Coach

Hints reveal broad direction first, then narrow toward the suspect path without showing hidden tests or exact solution code.

TopicHTTP/API

DifficultyEasy

Est. time10 min

Workspacepreparing

Explorer

Loading files

Evidence Map

Autosaved

workspace

Outputread-onlyready$ prepare workspace

Preparing workspace