Dynamic value
Requires ModHeader v4.0.18+
ModHeader supports simple dynamic value substitution. In the value fields, if you enter one of these special strings, the values will be replaced at runtime:
  • {{uuid}} - A random UUID v4
  • {{url}} - The current request URL
  • {{url_origin}} - The current request URL's origin
  • {{url_hostname}} - The current request URL's hostname
  • {{url_path}} - The current request URL's path
  • {{existing_value}} - The existing value (if any)
  • {{timestamp}} - The current time (in milliseconds since epoch)
  • {{ip_v4}} - A random IP v4 value
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