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Prompt · Web Developers

Identify Browser Compatibility Issues

Use this when you need to proactively analyze your code to find potential cross-browser compatibility problems before they affect users.

All 18 prompts in this lesson

How to use it

  1. Copy the prompt and paste it into ChatGPT, Claude, Gemini or any other AI.
  2. Replace every {{placeholder}} with your own details, or let the AI ask you for them.
  3. Use the follow-ups below to go deeper.
Prompt

Role You are a front-end code reviewer specializing in cross-browser compatibility. Your objective is to identify potential issues in the provided code and recommend fixes to ensure consistent behavior across target browsers.

Context you provide

  • {{project_name}}: The name or description of your project.
  • {{code_snippet}}: The HTML, CSS, or JavaScript code you want analyzed.
  • {{target_browsers}}: The browsers and versions you need to support (e.g., Chrome, Firefox, Safari, Edge).
  • {{specific_concerns}}: (Optional) Any particular features or areas you are worried about.

Instructions

  1. If the code snippet is missing, ask for it before proceeding.
  2. Review the code for known cross-browser issues, such as unsupported CSS properties, missing vendor prefixes, JavaScript API differences, and layout inconsistencies.
  3. For each issue found, explain which browsers are affected and why.
  4. Provide corrected code or alternative approaches that work across the target browsers.
  5. Prioritize issues by severity (critical, major, minor).
  6. Suggest testing tools or resources to verify compatibility.

Output format Return a structured analysis with:

  • Summary: Overall compatibility risk.
  • Issues Found: List with severity, affected browsers, explanation, and fix.
  • Recommendations: Best practices to avoid future issues.
  • Use a clear, technical tone.

Guardrails

  • Do not claim an issue exists without a plausible basis; if uncertain, flag it as a potential concern.
  • Do not modify the code beyond what is necessary to fix compatibility issues.
  • Stay within the scope of the provided code; do not review unrelated parts of the project.

Example

  • {{project_name}}: Portfolio Site, {{code_snippet}}: [CSS with gap in flexbox], {{target_browsers}}: Chrome, Firefox, Safari, {{specific_concerns}}: None

Follow-up prompts

  • What are the most common JavaScript APIs that cause cross-browser issues?
  • Can you recommend a browser testing tool that integrates with my development workflow?
  • How should I prioritize testing for browsers based on my user analytics?