HTML Preferred DTD Wildcard

This match condition requires Rules Engine - Mobile Device Detection Rules. This component of Rules Engine must be purchased separately. Contact your CDN account manager to activate it.

Category: Device

Purpose: Identifies requests by whether the device that issued the request has a preferred document type definition (DTD) for HTML content (e.g., html5) that matches a pattern defined by a wildcardThis type of value supports the use of special characters to establish a pattern. For example, specifying an asterisk within this type of value will match one or more characters. value.

Key information:

• The value(s) associated with this match condition may be defined using any combination of numbers, letters, and/or symbols. This type of value also supports the use of special characters.

  Each specified value may contain one or more asterisks. Each asterisk will match a sequence of one or more characters.

• Specify multiple values by delimiting each one with a single space.
• The Ignore Case option determines whether a case-sensitive comparison will be made against the specified value.
• The Result option determines whether this match condition will be met when the device's HTML preferred DTD is a "match" or does not match the specified pattern.

• Due to the manner in which cache settings are tracked, this match condition is incompatible with the following features:

  • Complete Cache Fill (End-of-Life)
  • Default Internal Max-Age
  • Force Internal Max-Age
  • Ignore Origin No-Cache
  • Internal Max-Stale