Archives Subscribe to RSS feed

A full timeline of every post on Codeslog, organized by year. Look back through the complete archive of writing on web accessibility and frontend development.

2026  54 posts

July  24 posts

Accessibility Evaluation Has a Standard Too — WCAG-EM 2.0, Twelve Years Later

Published date: 2026-07-24 · Reading time: 14 min · Word count: 2895 words · Author: Isaac

The Zombie Task Stuck in ‘Scanning’ — Vercel Deployment Protection Was the Culprit

Published date: 2026-07-24 · Reading time: 9 min · Word count: 1844 words · Author: Isaac

An Open-Source Web Accessibility Checker — The A11y Check Story

Published date: 2026-07-23 · Reading time: 13 min · Word count: 2610 words · Author: Isaac

Traces, Debugging, and Retries — Tracking Down the Cause

Published date: 2026-07-22 · Reading time: 7 min · Word count: 1294 words · Author: Isaac

Fixtures, Auth Reuse, and Parallel Runs

Published date: 2026-07-21 · Reading time: 3 min · Word count: 1355 words · Author: Isaac

The Color Is Right but the Contrast Is Wrong: The Accessibility Trap CSS opacity Sets

Published date: 2026-07-21 · Reading time: 5 min · Word count: 2074 words · Author: Isaac

Locators and auto-wait — Taming Flaky Tests

Published date: 2026-07-18 · Reading time: 4 min · Word count: 1692 words · Author: Isaac

Supporting High Contrast Mode Properly: forced-colors and System Colors

Published date: 2026-07-18 · Reading time: 12 min · Word count: 2418 words · Author: Isaac

Dark Mode Done Right: CSS Variable Design to Contrast Verification

Published date: 2026-07-18 · Reading time: 15 min · Word count: 3103 words · Author: Isaac

Getting Started with Playwright E2E — Your First Scenario

Published date: 2026-07-18 · Reading time: 4 min · Word count: 1781 words · Author: Isaac

Folding Accessibility into Tests — Role-Based Queries

Published date: 2026-07-17 · Reading time: 6 min · Word count: 2994 words · Author: Isaac

?? vs ||: Why Your Zero Keeps Disappearing

Published date: 2026-07-14 · Reading time: 9 min · Word count: 1835 words · Author: Isaac

Mocking the Network with MSW — Isolating the API

Published date: 2026-07-14 · Reading time: 4 min · Word count: 1854 words · Author: Isaac

71% Accessible Is Not Accessible — The Carrefour Ruling and One Year of the EAA

Published date: 2026-07-14 · Reading time: 9 min · Word count: 1845 words · Author: Isaac

Testing Forms, Interaction, and State — with user-event

Published date: 2026-07-13 · Reading time: 5 min · Word count: 2181 words · Author: Isaac

The Testing Library Philosophy — Querying Like a User

Published date: 2026-07-10 · Reading time: 6 min · Word count: 2590 words · Author: Isaac

mock, stub, spy — Understanding Test Doubles Properly

Published date: 2026-07-10 · Reading time: 12 min · Word count: 2548 words · Author: Isaac

TypeScript 7 Is Here — The 10x Native Compiler, and Whether You Should Switch Now

Published date: 2026-07-09 · Reading time: 12 min · Word count: 2545 words · Author: Isaac

Testing Async Code, Timers, and Errors

Published date: 2026-07-08 · Reading time: 9 min · Word count: 1745 words · Author: Isaac

Unit Testing Basics — Pure Functions, Edge Cases, and the AAA Pattern

Published date: 2026-07-06 · Reading time: 11 min · Word count: 2318 words · Author: Isaac

Wiring Vitest into the Demo App — All the Way to the First Green Light

Published date: 2026-07-05 · Reading time: 5 min · Word count: 2094 words · Author: Isaac

What to Test, and How Much — The Trap of 100% Coverage

Published date: 2026-07-04 · Reading time: 5 min · Word count: 988 words · Author: Isaac

Testing Terms, All in One Place — A Frontend Testing Glossary (Appendix)

Published date: 2026-07-04 · Reading time: 16 min · Word count: 3289 words · Author: Isaac

Why Frontend Testing, Why Now — A Seatbelt for the AI Era

Published date: 2026-07-03 · Reading time: 6 min · Word count: 1133 words · Author: Isaac

June  1 posts

Bought With My Own Money: Dr. Lee Pomodoro Timer Review — The Simplest Tool for a 90-Minute Routine

Published date: 2026-06-22 · Reading time: 8 min · Word count: 1696 words · Author: Isaac

May  2 posts

You Are Already an Accessibility User

Published date: 2026-05-20 · Reading time: 8 min · Word count: 1597 words · Author: Isaac

May Greetings for Everyone — The Story of Daon Card

Published date: 2026-05-08 · Reading time: 4 min · Word count: 1611 words · Author: Isaac

April  7 posts

Presenting at an Accessibility Seminar — A Journey Toward a Happier Web: The ModuWeb Story

Published date: 2026-04-23 · Reading time: 4 min · Word count: 1713 words · Author: Isaac

The Redesigned Cheong Wa Dae Website — But What About Accessibility?

Published date: 2026-04-21 · Reading time: 36 min · Word count: 7549 words · Author: Isaac

Quiet Work — On Receiving Korea’s Minister of Education Commendation at the 46th Disability Day

Published date: 2026-04-20 · Reading time: 5 min · Word count: 1064 words · Author: Isaac

Why Does Copy-Pasting from HWP Cause ‘?’ in MSSQL — VARCHAR vs NVARCHAR Explained

Published date: 2026-04-20 · Reading time: 6 min · Word count: 2974 words · Author: Isaac

Form Accessibility Mastery: Designing Accessible Input Forms for Everyone

Published date: 2026-04-11 · Reading time: 7 min · Word count: 3007 words · Author: Isaac

Promise.all vs Promise.allSettled: The Difference That Matters

Published date: 2026-04-08 · Reading time: 7 min · Word count: 1487 words · Author: Isaac

Function Declarations vs Expressions: Hoisting Explained

Published date: 2026-04-04 · Reading time: 11 min · Word count: 2197 words · Author: Isaac

March  3 posts

17.1% Alt Text Compliance: What South Korea’s 2025 Web Accessibility Survey Reveals

Published date: 2026-03-30 · Reading time: 5 min · Word count: 2151 words · Author: Isaac

How Accessible Is Google’s New IDE Homepage? — Analyzing Google Antigravity

Published date: 2026-03-17 · Reading time: 5 min · Word count: 2470 words · Author: Isaac

Color Accessibility: Designing Colors That Everyone Can Perceive

Published date: 2026-03-06 · Reading time: 22 min · Word count: 4641 words · Author: Isaac

February  5 posts

WCAG 3.0 Expanded Scope: Beyond the Web

Published date: 2026-02-23 · Reading time: 5 min · Word count: 2112 words · Author: Isaac

Seollal Holiday Information Isn’t Visible to Everyone

Published date: 2026-02-15 · Reading time: 4 min · Word count: 1708 words · Author: Isaac

Thoughts on Writing Blog Posts

Published date: 2026-02-05 · Reading time: 3 min · Word count: 579 words · Author: Isaac

Keyboard Accessibility A to Z: Building Websites Everyone Can Use Without a Mouse

Published date: 2026-02-03 · Reading time: 20 min · Word count: 4097 words · Author: Isaac

Assertions: A New Unit for Accessibility Evaluation

Published date: 2026-02-01 · Reading time: 2 min · Word count: 839 words · Author: Isaac

January  12 posts

Scheduled Publishing with GitHub Actions Every 3 Hours

Published date: 2026-01-30 · Reading time: 11 min · Word count: 2254 words · Author: Isaac

Atomic Tests vs. Holistic Tests: A New Testing Approach

Published date: 2026-01-26 · Reading time: 4 min · Word count: 779 words · Author: Isaac

WCAG 3.0 Conformance Model: Moving Beyond A/AA/AAA

Published date: 2026-01-25 · Reading time: 6 min · Word count: 1144 words · Author: Isaac

Improving Multilingual Blog UX: Building a Smart Language Suggestion Banner

Published date: 2026-01-23 · Reading time: 9 min · Word count: 4166 words · Author: Isaac

ARIA Practical Guide: Implementing Accessible Web Interfaces

Published date: 2026-01-22 · Reading time: 19 min · Word count: 3918 words · Author: Isaac

WCAG 3.0 Structure Anatomy: From Success Criteria to Outcomes

Published date: 2026-01-19 · Reading time: 18 min · Word count: 3706 words · Author: Isaac

Building a Dynamic Comment System on a Static Site: Giscus + GraphQL API

Published date: 2026-01-16 · Reading time: 10 min · Word count: 4710 words · Author: Isaac

The Dawn of WCAG 3.0: Why We Need New Guidelines

Published date: 2026-01-12 · Reading time: 15 min · Word count: 2995 words · Author: Isaac

Code Block Accessibility Improvement: Line Numbers That Screen Reader Users Can Choose

Published date: 2026-01-09 · Reading time: 17 min · Word count: 3519 words · Author: Isaac

Beyond Regulation, Toward Trust - The AI Basic Act and Accessibility

Published date: 2026-01-07 · Reading time: 18 min · Word count: 3632 words · Author: Isaac

Beyond Technology, Toward People – Understanding the Digital Inclusion Act

Published date: 2026-01-06 · Reading time: 9 min · Word count: 1742 words · Author: Isaac

Beyond Accessibility to Digital Inclusion - The Beginning of a New Era

Published date: 2026-01-05 · Reading time: 6 min · Word count: 1258 words · Author: Isaac

2025  5 posts

December  4 posts

Questions I Asked at the AI Public Service Evaluation

Published date: 2025-12-31 · Reading time: 7 min · Word count: 1370 words · Author: Isaac

A $35 Evaluation Panel — Why I’m Still Going to Seoul

Published date: 2025-12-30 · Reading time: 5 min · Word count: 1031 words · Author: Isaac

The Complete Guide to Semantic HTML: Escaping Div Hell

Published date: 2025-12-23 · Reading time: 16 min · Word count: 3295 words · Author: Isaac

Web Accessibility in the AI Era: Universal Values That Must Evolve With Technology

Published date: 2025-12-23 · Reading time: 15 min · Word count: 3165 words · Author: Isaac

September  1 posts

Blog, Beginning

Published date: 2025-09-22 · Reading time: 3 min · Word count: 448 words · Author: Isaac
맨 위로