[android-components](../../index.md) / [mozilla.components.browser.engine.gecko.content.blocking](../index.md) / [GeckoTrackingProtectionException](index.md) / [principal](./principal.md)

# principal

`val principal: `[`String`](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html) [(source)](https://github.com/mozilla-mobile/android-components/blob/master/components/browser/engine-gecko-beta/src/main/java/mozilla/components/browser/engine/gecko/content/blocking/GeckoTrackingProtectionException.kt#L14)

Internal gecko identifier of an URI.

### Property

`principal` - Internal gecko identifier of an URI.