Learn how to resolve common Super Forms reCaptcha v2/v3 issues in WordPress: loading failures, verification errors, multiple-form conflicts, API key mistakes, and JavaScript conflicts.
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When using Super Forms on WordPress, you may occasionally encounter issues where the Google reCaptcha element:
Doesn’t display on the page
Returns the error “Google reCAPTCHA verification failed!”
Malfunctions when you have multiple forms per page
This guide walks you through all the major causes and step-by-step fixes.
Many reCaptcha errors stem from invalid or misconfigured API keys.
Locate Your Keys
In WordPress admin, go to Super Forms → Settings and search for “captcha”, or
go to Super Forms → Settings → Form Settings and scroll to reCaptcha API settings
Regenerate Keys
Visit the .
Delete the existing key pair for your site.
Create a new v2 (Checkbox) or v3 key, ensuring you enter your site’s exact domain(s) under Allowed domains.
Update in Super Forms
Copy the Site Key and Secret Key into Super Forms’ settings fields.
Save and clear any caches (see § 4).
Note: If you switch from v3 to v2, you must generate a fresh v2 key pair—v2 and v3 keys are not interchangeable.
Google will refuse to load reCaptcha if the domain or SSL settings don’t match.
Domain Whitelist:
In the reCaptcha console, ensure exact match of your site’s URL (e.g. example.com vs. www.example.com).
Add both variants if necessary.
HTTPS Requirement:
reCaptcha requires a valid SSL certificate on your domain.
Mixed-content (HTTP scripts on HTTPS page) will be blocked by modern browsers.
reCaptcha injects its own JS; conflicts can prevent the widget from rendering.
Console Errors:
Open your browser’s Developer Tools → Console.
Look for errors like grecaptcha is not defined or Blocked script.
Defer / Async Optimization Plugins:
If you use WP Rocket, Autoptimize, or similar, exclude https://www.google.com/recaptcha/ from defer/minify lists.
Or disable JS optimization temporarily to confirm.
Theme Hooks:
Ensure your theme calls <?php wp_head(); ?> in the <head> and <?php wp_footer(); ?> before </body>.
Missing these hooks prevents plugin scripts from loading.
Caching layers may serve old JavaScript or block dynamic tokens.
Page Caching:
Exclude pages with active forms from full-page caches (e.g. via WP Rocket “Never Cache URL”).
Or add query-strings to force fresh loads.
CDN Rules:
If you use Cloudflare, create a Page Rule to Disable Performance on your form pages so Cloudflare doesn’t strip query parameters from reCaptcha scripts.
