Comments show Error 400 after cache clear
Comments fail with Error 400 even after the page cache is cleared, and the plugin's advice does not resolve it.
Tier II · Emerging Problems that are still building up.
4 public reports · first reported 18 June 2021 · last reported 19 January 2026
What's going wrong
Site owners using this anti-spam plugin alongside page caches, including LiteSpeed Cache users, report that visitors and admins still get an Error 400 message when submitting comments, even after purging the cache several times.
AI-assisted: written with the help of AI from the reports. The idea report has the full summary.
In the idea report
- The full summary.
- The products the 4 reports are about, and how many came each month.
- Related problems.
No business has been found with this problem yet, so the report has no contacts. All sales are final — no refunds. Pricing.