Avoid serving legacy JavaScript to modern browsers

  • Resolved diomededlssc

    (@diomededlssc)


    8 months, 3 weeks ago

    Description:
    We’ve identified that the Meta Pixel for WordPress plugin is currently serving legacy JavaScript to modern browsers. This can negatively impact performance and page load times, especially for users on up-to-date browsers that support modern JavaScript standards.

    Issue Details:

    • Legacy JavaScript is being loaded unnecessarily.
    • Modern browsers are capable of handling optimized, modular JavaScript.
    • This may affect Core Web Vitals and overall site speed.

    Suggested Resolution:

    • Update the plugin to conditionally serve modern JavaScript to compatible browsers.
    • Implement feature detection or use <script type="module"> for modern JS and <script nomodule> for fallback.
    • Review and refactor any outdated scripts or polyfills that are no longer needed.

    Impact:
    This issue may degrade user experience and SEO performance due to slower page rendering and increased resource usage.

    Attachments:
    Screenshot attached from google page insights report

    Requested Action:
    Please investigate and update the plugin to ensure it serves optimized JavaScript based on browser capabilities.

    The page I need help with: [log in to see the link]

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