Browser obfuscation rules

Obfuscation rules let you mask sensitive data before the agent transmits it to New Relic. Each rule is a regex pattern paired with a replacement string. Rules are applied to the serialized JSON payload before transmission.

Configuration

Pass an obfuscate array in the agent configuration:

config: {
  obfuscate: [
    { regex: /\/user\/[^\/?"]+/, replacement: '/user/[REDACTED]' },
    { regex: /token=[^&"]+/, replacement: 'token=[MASKED]' },
  ]
}

Parameters

Rule ordering

Rules are applied sequentially — the output of one rule feeds into the next. Invalid regex patterns are skipped with a warning logged via Log.warn.