Install any skill in seconds. Free to start, no credit card required.
Get Started Free →Use when reviewing CI coverage, automated checks, or test strategy related to Test across all major browsers. Focus on whether the rule is continuously verified, not just documented.
| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-01 | ✗→✓ | ▲ Improved | 1% | 0% |
| case-09 | ✓→✓ | = Same ✓ | 3% | 0% |
| case-02 | ✓→✓ | = Same ✓ | 7% | 0% |
| case-03 | ✓→✓ | = Same ✓ | 4% | 0% |
| case-04 | ✓→✓ | = Same ✓ | 0% | 0% |
Users access your site from different browsers, each with unique rendering engines. Without cross-browser testing, a significant portion of users may experience broken layouts, missing features, or complete failures.
Verify that this website works correctly across major browsers (Chrome, Firefox, Safari, Edge).
Fix browser-specific issues and ensure consistent experience across different browsers.
Explain the importance of testing across browsers to ensure all users have a good experience.
Review tests, CI workflows, and enforcement points related to Test across all major browsers. Flag exact gaps where the rule is not automatically verified or where failures do not block regressions.
For full implementation details, code examples, and framework-specific guidance, see references/rule.md.
Rule page: https://frontendchecklist.io/en/rules/testing/cross-browser-testing
Other measured skills in the registry, with their headline benchmark lift.