Blog — Page 5 — Gias ul Hassan

Why Your React App Re-Renders Twice on Every Click

You click a button and it renders twice. Sometimes that's a real bug — and sometimes it's React doing exactly what it's told. Knowing which saves hours.

2 min read

Server Components vs Client Components: Choosing Without Guessing

Next.js made Server Components the default, and many developers now sprinkle "use client" until errors go away. There's a simpler rule.

2 min read

Handling Auth Redirects in Next.js Without the Flicker

A protected page shows its content for a split second, then snaps to login. That flash happens because the redirect is decided too late — in the browser.

2 min read

Authentication Mistakes Found in Small SaaS Apps

The same auth mistakes show up again and again in small SaaS codebases — and auth is the one area where a mistake isn't a bug, it's a breach.

3 min read

Why Your SaaS Trial-to-Paid Conversion Is Stuck

Sign-ups look healthy but few trials convert. The instinct is to tweak pricing — but it's usually about the first session, not the price at the end.

2 min read

Database Indexes That Quietly Save SaaS Apps From Slowdowns

An app feels instant with a hundred users and crawls with ten thousand. Nothing in the code changed — the data grew, and the fix is almost always indexes.

2 min read

Rate Limiting a SaaS API Without Punishing Real Users

Every public API needs rate limiting, or one bad actor hammers it down. But clumsy limits punish your best customers. The goal: stop abuse invisibly.

2 min read

Building a Chrome Extension With React: Lessons Learned

Putting React in an extension sounds simple — it's just a web app in a popup. Mostly. But the extension environment has rules that trip people up.

2 min read

How to Store Data Securely in a Chrome Extension

Extensions handle sensitive data and run in a shared browser, so where and how you store matters more than in a normal web app.

2 min read

Common Manifest V3 Mistakes That Get Extensions Rejected

The Web Store rejects a lot of MV3 extensions, and the emails are vague. Most of the time it's one of a handful of recurring mistakes.