How I Saved a Dhaka Food‑Delivery PWA from 8‑Second Timeouts by Swapping Network‑First for Cache‑First
AI-generated illustration 🚌 Try it yourself — Bus Fare Calculator BD This case study is based on a real, live product. Check it out below. Get Bus Fare Calculator BD → My phone buzzed at 6 am. The client – a two‑person food‑delivery startup in Banani – had just received a 4‑star rating on Google Play, but the real problem was hidden in the analytics dashboard: 8‑second page loads on 3G , a 45 % bounce rate, and a $1,200 daily revenue dip. Why Most Freelancers Miss the Real Caching Question We all love the buzzword offline‑first . We read it on the MDN docs, we brag about it in Upwork proposals, and we sprinkle it into cold‑email pitches. But the default Service Worker template that the CLI hands you is a blunt instrument. It forces a network‑first strategy on every request, assuming the network is always faster. In Bangladesh, that assumption is a lie. My first attempt was to stick the boilerplate in, hope for the best, and move on to the next gig. The result? The PWA still waite...