55 articles tagged #Backend Development
CORS errors that vanish in development but blow up in production are one of the most frustrating debugging experiences in web dev. Here's why they happen and how to fix them for good.
Prototype pollution is one of the sneakiest JavaScript vulnerabilities — a single crafted payload can silently corrupt shared objects across your entire Node.js app. Learn how attackers trace these paths and how you stop them cold.
Webhooks seem simple until they silently fail in production. This guide walks through every place events go missing in SaaS pipelines — from missed retries to signature mismatches — and shows you exactly how to fix them.
Both Render and Railway promise painless deploys with generous free tiers — but the bill at scale tells a different story. We dug into the actual pricing models, cold-start behavior, and hidden limits so you don't have to find out the hard way.
Supabase and PlanetScale both promise hassle-free databases for production, but their free tiers, scaling ceilings, and operational quirks differ in ways that only show up when traffic spikes. Here's what we found after pushing both hard.
Deploying a full-stack app on Vercel feels effortless until the invoice arrives or a cold start kills your API response time. Here's a head-to-head cost and performance test based on real workloads, not marketing pages.
Wondering why your setTimeout() callback executes later than expected in Node.js? Learn how event loop blocking occurs, how timers actually work, and practical techniques to prevent delayed execution.