What Breaks When You Build with SvelteKit and Capacitor
The difficult part of a SvelteKit-and-Capacitor app is rarely the screen itself. It is understanding the boundary between browser assumptions and native WebViews.
With SvelteKit and Capacitor, the hard work is often at the browser–native boundary. A feature that works in a desktop browser can fail in an embedded WebView because of origin rules, permission flow, storage behavior, lifecycle events, or platform policy.
Check camera and media permissions, deep links, local storage, keyboard and safe-area behavior, push notifications, background recovery, and third-party embeds such as YouTube iframes. On iOS, WKWebView details and App Store policy can affect an implementation that looked straightforward on the web.
Keep platform-specific code behind small interfaces, test on physical devices early, and document each assumption about authentication, origins, and offline behavior. Hybrid development is not just web development inside a wrapper; it is a product that must respect two environments at once.