Form submissions failing, delayed submit buttons, and missing “Thank You” redirects are common (and critical) issues for WordPress sites—especially when caching plugins are involved. In this case, multiple sites experienced inconsistent form behavior, lost leads, and broken integrations with external tracking tools.
The root cause turned out to be a caching conflict between WP Rocket and FlyingPress, which disrupted Contact Form 7’s AJAX functionality. Once the conflict was resolved and caches were properly cleared, form submissions returned to normal.
Issue Background
Several WordPress sites using Contact Form 7 began showing inconsistent form behavior, including:
- Form submissions not appearing in the backend or external dashboards
- Users needing to click the submit button multiple times
- Delays or lag when submitting forms (desktop and mobile)
- Redirects to URLs like:
/request-consultation-quote/#wpcf7-fXXX-pXXX-o1 instead of a proper Thank You page - Successful submissions when logged in, but failures for logged-out users
Additionally, some forms were not properly passing data to a third-party tracking system, leading to missing lead data.
Diagnosis
The troubleshooting process followed standard debugging steps:
- Reproduced the issue
- Confirmed inconsistent behavior across devices and browsers
- Verified differences between logged-in vs logged-out sessions
- Checked for frontend errors
- Observed abnormal redirect behavior tied to Contact Form 7 anchors (#wpcf7-*)
- Identified that AJAX submission was failing intermittently
- Investigated external integrations
- Found a related issue where a schema file returned a 404 error
- This indicated potential integration or script loading problems
- Reviewed caching and optimization setup
- Discovered that WP Rocket had been enabled network-wide, despite the site already using FlyingPress
- Multiple caching layers were active simultaneously
This overlapping caching setup created conflicts that interfered with JavaScript execution and AJAX requests—core to how Contact Form 7 processes submissions.
Resolution Steps
1. Remove conflicting caching plugins
Disabled WP Rocket completely and ensured FlyingPress remained the only active caching plugin.
2. Clear all caches
Cleared all layers of caching including plugin cache, server-side cache (WP Cloud), and browser cache.
3. Re-test form behavior
Forms were tested across logged-in and logged-out sessions, multiple devices, and browsers to confirm consistent behavior.
4. Verify third-party integrations
Confirmed that form data was correctly passing to external platforms and no additional errors were present.
Final Outcome
After removing the caching conflict and clearing all caches:
- Form submissions worked reliably across all devices
- Thank You page redirects functioned correctly
- No duplicate submissions or button lag
- All leads were successfully captured in both WordPress and integrated systems
This case highlights how even a small configuration oversight—like enabling multiple caching plugins—can have a major impact on form functionality and lead generation.
If your Contact Form 7 forms are behaving inconsistently, failing to submit, or not redirecting properly, caching conflicts are one of the first things to check.
If you need help diagnosing or resolving complex WordPress issues like this, reach out to Freshy’s team here:
