Block URLs in Text and Textarea Fields

Description

Rejects submissions containing URLs in text and textarea fields. Detects plain URLs (http://, https://, www.), HTML anchor tags, and Markdown-style links to reduce spam without requiring a CAPTCHA.

Usage Notes

  • Only applies to fields with input type text or textarea; other field types are unaffected.
  • Falls back to the field’s custom error message ($field->errorMessage) when set; otherwise displays a generic message.
  • The regex is intentionally broad — legitimate use cases requiring URLs in free-text fields will be blocked.
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