Compatibility
Cross-browser testing
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Chrome, Firefox, Safari Cross-Browser Compatibility Testing
Cross-browser compatibility testing to verify your website functions properly across major browsers.
Testing Tool: Playwright (Browser automation tool developed by Microsoft)
• Chromium (Base engine for Chrome, Edge)
• Firefox (Gecko engine)
• WebKit (Base engine for Safari)
Testing Objectives:
• Verify website functions properly across different browser environments
• Detect JavaScript runtime errors and separate first-party/third-party code
• Identify CSS parsing and rendering errors
• Proactively discover browser-specific compatibility issues
Measurement Criteria:
• Normal page loading (document.readyState === 'complete')
• JavaScript error collection (classified as first-party/third-party/noise)
• CSS error collection (based on parser error patterns)
• Browser-specific User-Agent information
Testing Tool: Playwright (Browser automation tool developed by Microsoft)
• Chromium (Base engine for Chrome, Edge)
• Firefox (Gecko engine)
• WebKit (Base engine for Safari)
Testing Objectives:
• Verify website functions properly across different browser environments
• Detect JavaScript runtime errors and separate first-party/third-party code
• Identify CSS parsing and rendering errors
• Proactively discover browser-specific compatibility issues
Measurement Criteria:
• Normal page loading (document.readyState === 'complete')
• JavaScript error collection (classified as first-party/third-party/noise)
• CSS error collection (based on parser error patterns)
• Browser-specific User-Agent information
| Grade | Score | Criteria |
|---|---|---|
| A+ | 90~100 | Chrome/Firefox/Safari all normal First-party JS errors: 0 CSS rendering errors: 0 |
| A | 80~89 | Major browser support good (2+ normal) First-party JS errors ≤ 1 CSS errors ≤ 1 |
| B | 70~79 | Browser-specific minor differences (2+ normal) First-party JS errors ≤ 3 CSS errors ≤ 3 |
| C | 60~69 | Some browsers have degraded functionality (1+ normal) First-party JS errors ≤ 6 CSS errors ≤ 6 |
| D | 50~59 | Multiple compatibility issues First-party JS errors ≤ 10 CSS errors ≤ 10 |
| F | 0~49 | Major browsers fail to function properly First-party JS errors 10+ CSS errors 10+ |
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