Cross-Browser Testing

Despite web standards, browsers interpret HTML, CSS, and JavaScript with subtle differences. A layout that looks perfect in Chrome might overflow in Safari. A JavaScript API that works in modern Firefox might not exist in an older version of Edge. Cross-browser testing catches these inconsistencies before users encounter them.

AI code generation tools tend to produce code that works in the browser the developer is using for testing, which is typically the latest version of Chrome. They rarely account for Safari-specific quirks, Firefox rendering differences, or mobile browser limitations. This means vibecoded apps frequently have cross-browser issues that go unnoticed until users complain.

Effective cross-browser testing does not require checking every browser ever made. It means prioritizing the browsers your target audience actually uses and testing key user flows in each. DidItWork testers check applications across multiple browsers and devices as part of their standard QA process, ensuring your vibecoded app works for your actual users, not just for your development browser.