Overview
Cross-browser compatibility ensures that a website functions and appears consistently across different browsers (Chrome, Firefox, Safari, Edge) and their various versions. It is a critical aspect of web development due to differences in how browsers interpret code.
Challenges
- Rendering Engines: Different browsers use different engines (Blink, Gecko, WebKit).
- Feature Support: Newer CSS or JS features may not be supported in older browsers.
- Bugs: Browsers may have unique bugs or quirks in their implementations.
Solutions
- Polyfills: Adding support for missing features.
- Transpilation: Converting modern code to older versions (e.g., Babel).
- CSS Prefixing: Adding vendor prefixes for experimental features.
- Testing: Using tools like BrowserStack or Sauce Labs.