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declarativeNetRequest.MatchedRule

files/en-us/mozilla/add-ons/webextensions/api/declarativenetrequest/matchedrule/index.md

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An object describing the matched rule. This type may be returned by the {{WebExtAPIRef("declarativeNetRequest.getMatchedRules")}} or {{WebExtAPIRef("declarativeNetRequest.testMatchOutcome")}} methods, or observed through the {{WebExtAPIRef("declarativeNetRequest.onRuleMatchedDebug")}} event.

Type

Values of this type are objects. They contain these properties:

  • extensionId
    • : A string. The ID of the extension, if this rule belongs to a different extension. This property is only available when used with {{WebExtAPIRef("declarativeNetRequest.testMatchOutcome")}}, with the includeOtherExtensions option set to true.
  • ruleId
    • : A number. The matching rule's ID.
  • rulesetId
    • : A string. The ID of the ruleset this rule belongs to. The value returned is:
      • For a rule originating from the set of static rules, the value specified in the "id" key of the ruleset in the declarative_net_request.rule_resources manifest key.
      • For a rule originating from the set of dynamic rules, the value defined in {{WebExtAPIRef("declarativeNetRequest.DYNAMIC_RULESET_ID")}}, i.e., "_dynamic".
      • For a rule originating from the set of session rules, the value defined in {{WebExtAPIRef("declarativeNetRequest.SESSION_RULESET_ID")}}, i.e., "_session".

{{WebExtExamples("h2")}}

Browser compatibility

{{Compat}}

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